USB Mass Storage Device

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USB Mass Storage Device
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Sam87

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Since: Aug 16, 2004
Posts: 130

(Msg. 1) Posted: Thu Aug 10, 2006 11:39 am Post subject: USB Mass Storage Device Archived from groups: microsoft>public>windowsxp>hardware (more info?)

My Windows XP Pro SP2 does not read any USB flash drives at all. Whenever I plug my memory card reader/writer or flash pen drive(1GB), it is asking me to locate the driver for USB Mass Storage Device. Windows was unable to locate and I am unable to use those devices. However, it did successfully installed my USB HP printer and detected my USB 250GB External Hard Drive. Also, sometimes it saids "If you plug your device in a USB 2.0, it will perform faster". All 3 of my USB port are USB 2.0. It is strange. Any help will be a great thanks. Please email me to my email: sam93940_at_hotmail.com(do not spam). >> Stay informed about: USB Mass Storage Device

Sam87

External

Since: Aug 16, 2004
Posts: 130

(Msg. 2) Posted: Thu Aug 10, 2006 11:47 am Post subject: RE: USB Mass Storage Device [Login to view extended thread Info.] Archived from groups: per prev. post (more info?)

Forgot to post that I have tried removing my USB Controllers in Device Manager. Restarted my laptop and Windows XP did not detect it at all. I ended up re-formating my laptop. "Sam" wrote: > My Windows XP Pro SP2 does not read any USB flash drives at all. Whenever I > plug my memory card reader/writer or flash pen drive(1GB), it is asking me to > locate the driver for USB Mass Storage Device. Windows was unable to locate > and I am unable to use those devices. However, it did successfully installed > my USB HP printer and detected my USB 250GB External Hard Drive. Also, > sometimes it saids "If you plug your device in a USB 2.0, it will perform > faster". All 3 of my USB port are USB 2.0. It is strange. Any help will be a > great thanks. Please email me to my email: sam93940_at_hotmail.com(do not > spam). >> Stay informed about: USB Mass Storage Device

Pavel A.1

External

Since: Oct 07, 2004
Posts: 57

(Msg. 3) Posted: Fri Aug 11, 2006 8:55 pm Post subject: Re: USB Mass Storage Device [Login to view extended thread Info.] Archived from groups: per prev. post (more info?)

It looks like a power related issue. Your devices that work (the printer, 250 gb drive) are self powered. Bus powered devices even can't enumerate properly. Try to conect them via a powered USB 2.0 hub. If your PC is a laptop, make sure it is powered from AC. Sorry, no email. --PA "Sam" <Sam.RemoveThis@discussions.microsoft.com> wrote in message news:B7AA7B49-BAB5-4A9F-B240-B7C1B0021130@microsoft.com... > My Windows XP Pro SP2 does not read any USB flash drives at all. Whenever I > plug my memory card reader/writer or flash pen drive(1GB), it is asking me to > locate the driver for USB Mass Storage Device. Windows was unable to locate > and I am unable to use those devices. However, it did successfully installed > my USB HP printer and detected my USB 250GB External Hard Drive. Also, > sometimes it saids "If you plug your device in a USB 2.0, it will perform > faster". All 3 of my USB port are USB 2.0. It is strange. Any help will be a > great thanks. Please email me to my email: sam93940_at_hotmail.com(do not > spam). >> Stay informed about: USB Mass Storage Device

Sam87

External

Since: Aug 16, 2004
Posts: 130

(Msg. 4) Posted: Sat Aug 12, 2006 7:57 pm Post subject: Re: USB Mass Storage Device [Login to view extended thread Info.] Archived from groups: per prev. post (more info?)

It is a Sony VAIO vgn-fs742/w. My laptop is always connect to the ac adapter. It's not a power related problem. I believe it maybe problems of Windows XP not detecting generic USB Mass Storage Device driver. Thanks for your reply. "Pavel A." wrote: > It looks like a power related issue. Your devices that work > (the printer, 250 gb drive) are self powered. > Bus powered devices even can't enumerate properly. > Try to conect them via a powered USB 2.0 hub. > If your PC is a laptop, make sure it is powered from AC. > > Sorry, no email. > --PA > > "Sam" <Sam RemoveThis @discussions.microsoft.com> wrote in message news:B7AA7B49-BAB5-4A9F-B240-B7C1B0021130@microsoft.com... > > My Windows XP Pro SP2 does not read any USB flash drives at all. Whenever I > > plug my memory card reader/writer or flash pen drive(1GB), it is asking me to > > locate the driver for USB Mass Storage Device. Windows was unable to locate > > and I am unable to use those devices. However, it did successfully installed > > my USB HP printer and detected my USB 250GB External Hard Drive. Also, > > sometimes it saids "If you plug your device in a USB 2.0, it will perform > > faster". All 3 of my USB port are USB 2.0. It is strange. Any help will be a > > great thanks. Please email me to my email: sam93940_at_hotmail.com(do not > > spam). > > > >> Stay informed about: USB Mass Storage Device

Aaron

External

Since: Nov 07, 2006
Posts: 36

(Msg. 5) Posted: Tue Nov 07, 2006 11:28 am Post subject: Re: USB Mass Storage Device [Login to view extended thread Info.] Archived from groups: per prev. post (more info?)

Maybe your usb host controller is not usb 1.1 compliant, or the usb cable is not usb 2.0 compliant "Sam" <Sam RemoveThis @discussions.microsoft.com> :34E54A43-72F5-49C7-9D04-C7845DA37711@microsoft.com... > It is a Sony VAIO vgn-fs742/w. My laptop is always connect to the ac > adapter. > It's not a power related problem. I believe it maybe problems of Windows > XP > not detecting generic USB Mass Storage Device driver. Thanks for your > reply. > > "Pavel A." wrote: > >> It looks like a power related issue. Your devices that work >> (the printer, 250 gb drive) are self powered. >> Bus powered devices even can't enumerate properly. >> Try to conect them via a powered USB 2.0 hub. >> If your PC is a laptop, make sure it is powered from AC. >> >> Sorry, no email. >> --PA >> >> "Sam" <Sam RemoveThis @discussions.microsoft.com> wrote in message >> news:B7AA7B49-BAB5-4A9F-B240-B7C1B0021130@microsoft.com... >> > My Windows XP Pro SP2 does not read any USB flash drives at all. >> > Whenever I >> > plug my memory card reader/writer or flash pen drive(1GB), it is asking >> > me to >> > locate the driver for USB Mass Storage Device. Windows was unable to >> > locate >> > and I am unable to use those devices. However, it did successfully >> > installed >> > my USB HP printer and detected my USB 250GB External Hard Drive. Also, >> > sometimes it saids "If you plug your device in a USB 2.0, it will >> > perform >> > faster". All 3 of my USB port are USB 2.0. It is strange. Any help will >> > be a >> > great thanks. Please email me to my email: sam93940_at_hotmail.com(do >> > not >> > spam). >> >> >> >> Stay informed about: USB Mass Storage Device

Aaron

External

Since: Nov 07, 2006
Posts: 36

(Msg. 6) Posted: Tue Nov 07, 2006 11:28 am Post subject: Re: USB Mass Storage Device [Login to view extended thread Info.] Archived from groups: per prev. post (more info?)

Maybe your usb host controller is not usb 1.1 compliant, or the usb cable is not usb 2.0 compliant "Sam" <Sam RemoveThis @discussions.microsoft.com> :34E54A43-72F5-49C7-9D04-C7845DA37711@microsoft.com... > It is a Sony VAIO vgn-fs742/w. My laptop is always connect to the ac > adapter. > It's not a power related problem. I believe it maybe problems of Windows > XP > not detecting generic USB Mass Storage Device driver. Thanks for your > reply. > > "Pavel A." wrote: > >> It looks like a power related issue. Your devices that work >> (the printer, 250 gb drive) are self powered. >> Bus powered devices even can't enumerate properly. >> Try to conect them via a powered USB 2.0 hub. >> If your PC is a laptop, make sure it is powered from AC. >> >> Sorry, no email. >> --PA >> >> "Sam" <Sam RemoveThis @discussions.microsoft.com> wrote in message >> news:B7AA7B49-BAB5-4A9F-B240-B7C1B0021130@microsoft.com... >> > My Windows XP Pro SP2 does not read any USB flash drives at all. >> > Whenever I >> > plug my memory card reader/writer or flash pen drive(1GB), it is asking >> > me to >> > locate the driver for USB Mass Storage Device. Windows was unable to >> > locate >> > and I am unable to use those devices. However, it did successfully >> > installed >> > my USB HP printer and detected my USB 250GB External Hard Drive. Also, >> > sometimes it saids "If you plug your device in a USB 2.0, it will >> > perform >> > faster". All 3 of my USB port are USB 2.0. It is strange. Any help will >> > be a >> > great thanks. Please email me to my email: sam93940_at_hotmail.com(do >> > not >> > spam). >> >> >> >> Stay informed about: USB Mass Storage Device

Aaron

External

Since: Nov 07, 2006
Posts: 36

(Msg. 7) Posted: Tue Nov 07, 2006 11:28 am Post subject: Re: USB Mass Storage Device [Login to view extended thread Info.] Archived from groups: per prev. post (more info?)

Maybe your usb host controller is not usb 1.1 compliant, or the usb cable is not usb 2.0 compliant "Sam" <Sam.RemoveThis@discussions.microsoft.com> :34E54A43-72F5-49C7-9D04-C7845DA37711@microsoft.com... > It is a Sony VAIO vgn-fs742/w. My laptop is always connect to the ac > adapter. > It's not a power related problem. I believe it maybe problems of Windows > XP > not detecting generic USB Mass Storage Device driver. Thanks for your > reply. > > "Pavel A." wrote: > >> It looks like a power related issue. Your devices that work >> (the printer, 250 gb drive) are self powered. >> Bus powered devices even can't enumerate properly. >> Try to conect them via a powered USB 2.0 hub. >> If your PC is a laptop, make sure it is powered from AC. >> >> Sorry, no email. >> --PA >> >> "Sam" <Sam.RemoveThis@discussions.microsoft.com> wrote in message >> news:B7AA7B49-BAB5-4A9F-B240-B7C1B0021130@microsoft.com... >> > My Windows XP Pro SP2 does not read any USB flash drives at all. >> > Whenever I >> > plug my memory card reader/writer or flash pen drive(1GB), it is asking >> > me to >> > locate the driver for USB Mass Storage Device. Windows was unable to >> > locate >> > and I am unable to use those devices. However, it did successfully >> > installed >> > my USB HP printer and detected my USB 250GB External Hard Drive. Also, >> > sometimes it saids "If you plug your device in a USB 2.0, it will >> > perform >> > faster". All 3 of my USB port are USB 2.0. It is strange. Any help will >> > be a >> > great thanks. Please email me to my email: sam93940_at_hotmail.com(do >> > not >> > spam). >> >> >> >> Stay informed about: USB Mass Storage Device

Aaron

External

Since: Nov 07, 2006
Posts: 36

(Msg. 8) Posted: Tue Nov 07, 2006 11:28 am Post subject: Re: USB Mass Storage Device [Login to view extended thread Info.] Archived from groups: per prev. post (more info?)

Maybe your usb host controller is not usb 1.1 compliant, or the usb cable is not usb 2.0 compliant "Sam" <Sam DeleteThis @discussions.microsoft.com> :34E54A43-72F5-49C7-9D04-C7845DA37711@microsoft.com... > It is a Sony VAIO vgn-fs742/w. My laptop is always connect to the ac > adapter. > It's not a power related problem. I believe it maybe problems of Windows > XP > not detecting generic USB Mass Storage Device driver. Thanks for your > reply. > > "Pavel A." wrote: > >> It looks like a power related issue. Your devices that work >> (the printer, 250 gb drive) are self powered. >> Bus powered devices even can't enumerate properly. >> Try to conect them via a powered USB 2.0 hub. >> If your PC is a laptop, make sure it is powered from AC. >> >> Sorry, no email. >> --PA >> >> "Sam" <Sam DeleteThis @discussions.microsoft.com> wrote in message >> news:B7AA7B49-BAB5-4A9F-B240-B7C1B0021130@microsoft.com... >> > My Windows XP Pro SP2 does not read any USB flash drives at all. >> > Whenever I >> > plug my memory card reader/writer or flash pen drive(1GB), it is asking >> > me to >> > locate the driver for USB Mass Storage Device. Windows was unable to >> > locate >> > and I am unable to use those devices. However, it did successfully >> > installed >> > my USB HP printer and detected my USB 250GB External Hard Drive. Also, >> > sometimes it saids "If you plug your device in a USB 2.0, it will >> > perform >> > faster". All 3 of my USB port are USB 2.0. It is strange. Any help will >> > be a >> > great thanks. Please email me to my email: sam93940_at_hotmail.com(do >> > not >> > spam). >> >> >> >> Stay informed about: USB Mass Storage Device

Aaron

External

Since: Nov 07, 2006
Posts: 36

(Msg. 9) Posted: Tue Nov 07, 2006 11:28 am Post subject: Re: USB Mass Storage Device [Login to view extended thread Info.] Archived from groups: per prev. post (more info?)

Maybe your usb host controller is not usb 1.1 compliant, or the usb cable is not usb 2.0 compliant "Sam" <Sam.DeleteThis@discussions.microsoft.com> :34E54A43-72F5-49C7-9D04-C7845DA37711@microsoft.com... > It is a Sony VAIO vgn-fs742/w. My laptop is always connect to the ac > adapter. > It's not a power related problem. I believe it maybe problems of Windows > XP > not detecting generic USB Mass Storage Device driver. Thanks for your > reply. > > "Pavel A." wrote: > >> It looks like a power related issue. Your devices that work >> (the printer, 250 gb drive) are self powered. >> Bus powered devices even can't enumerate properly. >> Try to conect them via a powered USB 2.0 hub. >> If your PC is a laptop, make sure it is powered from AC. >> >> Sorry, no email. >> --PA >> >> "Sam" <Sam.DeleteThis@discussions.microsoft.com> wrote in message >> news:B7AA7B49-BAB5-4A9F-B240-B7C1B0021130@microsoft.com... >> > My Windows XP Pro SP2 does not read any USB flash drives at all. >> > Whenever I >> > plug my memory card reader/writer or flash pen drive(1GB), it is asking >> > me to >> > locate the driver for USB Mass Storage Device. Windows was unable to >> > locate >> > and I am unable to use those devices. However, it did successfully >> > installed >> > my USB HP printer and detected my USB 250GB External Hard Drive. Also, >> > sometimes it saids "If you plug your device in a USB 2.0, it will >> > perform >> > faster". All 3 of my USB port are USB 2.0. It is strange. Any help will >> > be a >> > great thanks. Please email me to my email: sam93940_at_hotmail.com(do >> > not >> > spam). >> >> >> >> Stay informed about: USB Mass Storage Device

Aaron

External

Since: Nov 07, 2006
Posts: 36

(Msg. 10) Posted: Tue Nov 07, 2006 11:28 am Post subject: Re: USB Mass Storage Device [Login to view extended thread Info.] Archived from groups: per prev. post (more info?)

Maybe your usb host controller is not usb 1.1 compliant, or the usb cable is not usb 2.0 compliant "Sam" <Sam DeleteThis @discussions.microsoft.com> :34E54A43-72F5-49C7-9D04-C7845DA37711@microsoft.com... > It is a Sony VAIO vgn-fs742/w. My laptop is always connect to the ac > adapter. > It's not a power related problem. I believe it maybe problems of Windows > XP > not detecting generic USB Mass Storage Device driver. Thanks for your > reply. > > "Pavel A." wrote: > >> It looks like a power related issue. Your devices that work >> (the printer, 250 gb drive) are self powered. >> Bus powered devices even can't enumerate properly. >> Try to conect them via a powered USB 2.0 hub. >> If your PC is a laptop, make sure it is powered from AC. >> >> Sorry, no email. >> --PA >> >> "Sam" <Sam DeleteThis @discussions.microsoft.com> wrote in message >> news:B7AA7B49-BAB5-4A9F-B240-B7C1B0021130@microsoft.com... >> > My Windows XP Pro SP2 does not read any USB flash drives at all. >> > Whenever I >> > plug my memory card reader/writer or flash pen drive(1GB), it is asking >> > me to >> > locate the driver for USB Mass Storage Device. Windows was unable to >> > locate >> > and I am unable to use those devices. However, it did successfully >> > installed >> > my USB HP printer and detected my USB 250GB External Hard Drive. Also, >> > sometimes it saids "If you plug your device in a USB 2.0, it will >> > perform >> > faster". All 3 of my USB port are USB 2.0. It is strange. Any help will >> > be a >> > great thanks. Please email me to my email: sam93940_at_hotmail.com(do >> > not >> > spam). >> >> >> >> Stay informed about: USB Mass Storage Device

Aaron

External

Since: Nov 07, 2006
Posts: 36

(Msg. 11) Posted: Tue Nov 07, 2006 11:28 am Post subject: Re: USB Mass Storage Device [Login to view extended thread Info.] Archived from groups: per prev. post (more info?)

Maybe your usb host controller is not usb 1.1 compliant, or the usb cable is not usb 2.0 compliant "Sam" <Sam DeleteThis @discussions.microsoft.com> :34E54A43-72F5-49C7-9D04-C7845DA37711@microsoft.com... > It is a Sony VAIO vgn-fs742/w. My laptop is always connect to the ac > adapter. > It's not a power related problem. I believe it maybe problems of Windows > XP > not detecting generic USB Mass Storage Device driver. Thanks for your > reply. > > "Pavel A." wrote: > >> It looks like a power related issue. Your devices that work >> (the printer, 250 gb drive) are self powered. >> Bus powered devices even can't enumerate properly. >> Try to conect them via a powered USB 2.0 hub. >> If your PC is a laptop, make sure it is powered from AC. >> >> Sorry, no email. >> --PA >> >> "Sam" <Sam DeleteThis @discussions.microsoft.com> wrote in message >> news:B7AA7B49-BAB5-4A9F-B240-B7C1B0021130@microsoft.com... >> > My Windows XP Pro SP2 does not read any USB flash drives at all. >> > Whenever I >> > plug my memory card reader/writer or flash pen drive(1GB), it is asking >> > me to >> > locate the driver for USB Mass Storage Device. Windows was unable to >> > locate >> > and I am unable to use those devices. However, it did successfully >> > installed >> > my USB HP printer and detected my USB 250GB External Hard Drive. Also, >> > sometimes it saids "If you plug your device in a USB 2.0, it will >> > perform >> > faster". All 3 of my USB port are USB 2.0. It is strange. Any help will >> > be a >> > great thanks. Please email me to my email: sam93940_at_hotmail.com(do >> > not >> > spam). >> >> >> >> Stay informed about: USB Mass Storage Device

Aaron

External

Since: Nov 07, 2006
Posts: 36

(Msg. 12) Posted: Tue Nov 07, 2006 11:28 am Post subject: Re: USB Mass Storage Device [Login to view extended thread Info.] Archived from groups: per prev. post (more info?)

Maybe your usb host controller is not usb 1.1 compliant, or the usb cable is not usb 2.0 compliant "Sam" <Sam RemoveThis @discussions.microsoft.com> :34E54A43-72F5-49C7-9D04-C7845DA37711@microsoft.com... > It is a Sony VAIO vgn-fs742/w. My laptop is always connect to the ac > adapter. > It's not a power related problem. I believe it maybe problems of Windows > XP > not detecting generic USB Mass Storage Device driver. Thanks for your > reply. > > "Pavel A." wrote: > >> It looks like a power related issue. Your devices that work >> (the printer, 250 gb drive) are self powered. >> Bus powered devices even can't enumerate properly. >> Try to conect them via a powered USB 2.0 hub. >> If your PC is a laptop, make sure it is powered from AC. >> >> Sorry, no email. >> --PA >> >> "Sam" <Sam RemoveThis @discussions.microsoft.com> wrote in message >> news:B7AA7B49-BAB5-4A9F-B240-B7C1B0021130@microsoft.com... >> > My Windows XP Pro SP2 does not read any USB flash drives at all. >> > Whenever I >> > plug my memory card reader/writer or flash pen drive(1GB), it is asking >> > me to >> > locate the driver for USB Mass Storage Device. Windows was unable to >> > locate >> > and I am unable to use those devices. However, it did successfully >> > installed >> > my USB HP printer and detected my USB 250GB External Hard Drive. Also, >> > sometimes it saids "If you plug your device in a USB 2.0, it will >> > perform >> > faster". All 3 of my USB port are USB 2.0. It is strange. Any help will >> > be a >> > great thanks. Please email me to my email: sam93940_at_hotmail.com(do >> > not >> > spam). >> >> >> >> Stay informed about: USB Mass Storage Device

Aaron

External

Since: Nov 07, 2006
Posts: 36

(Msg. 13) Posted: Tue Nov 07, 2006 11:28 am Post subject: Re: USB Mass Storage Device [Login to view extended thread Info.] Archived from groups: per prev. post (more info?)

Maybe your usb host controller is not usb 1.1 compliant, or the usb cable is not usb 2.0 compliant "Sam" <Sam.TakeThisOut@discussions.microsoft.com> :34E54A43-72F5-49C7-9D04-C7845DA37711@microsoft.com... > It is a Sony VAIO vgn-fs742/w. My laptop is always connect to the ac > adapter. > It's not a power related problem. I believe it maybe problems of Windows > XP > not detecting generic USB Mass Storage Device driver. Thanks for your > reply. > > "Pavel A." wrote: > >> It looks like a power related issue. Your devices that work >> (the printer, 250 gb drive) are self powered. >> Bus powered devices even can't enumerate properly. >> Try to conect them via a powered USB 2.0 hub. >> If your PC is a laptop, make sure it is powered from AC. >> >> Sorry, no email. >> --PA >> >> "Sam" <Sam.TakeThisOut@discussions.microsoft.com> wrote in message >> news:B7AA7B49-BAB5-4A9F-B240-B7C1B0021130@microsoft.com... >> > My Windows XP Pro SP2 does not read any USB flash drives at all. >> > Whenever I >> > plug my memory card reader/writer or flash pen drive(1GB), it is asking >> > me to >> > locate the driver for USB Mass Storage Device. Windows was unable to >> > locate >> > and I am unable to use those devices. However, it did successfully >> > installed >> > my USB HP printer and detected my USB 250GB External Hard Drive. Also, >> > sometimes it saids "If you plug your device in a USB 2.0, it will >> > perform >> > faster". All 3 of my USB port are USB 2.0. It is strange. Any help will >> > be a >> > great thanks. Please email me to my email: sam93940_at_hotmail.com(do >> > not >> > spam). >> >> >> >> Stay informed about: USB Mass Storage Device

Aaron

External

Since: Nov 07, 2006
Posts: 36

(Msg. 14) Posted: Tue Nov 07, 2006 11:28 am Post subject: Re: USB Mass Storage Device [Login to view extended thread Info.] Archived from groups: per prev. post (more info?)

Maybe your usb host controller is not usb 1.1 compliant, or the usb cable is not usb 2.0 compliant "Sam" <Sam DeleteThis @discussions.microsoft.com> :34E54A43-72F5-49C7-9D04-C7845DA37711@microsoft.com... > It is a Sony VAIO vgn-fs742/w. My laptop is always connect to the ac > adapter. > It's not a power related problem. I believe it maybe problems of Windows > XP > not detecting generic USB Mass Storage Device driver. Thanks for your > reply. > > "Pavel A." wrote: > >> It looks like a power related issue. Your devices that work >> (the printer, 250 gb drive) are self powered. >> Bus powered devices even can't enumerate properly. >> Try to conect them via a powered USB 2.0 hub. >> If your PC is a laptop, make sure it is powered from AC. >> >> Sorry, no email. >> --PA >> >> "Sam" <Sam DeleteThis @discussions.microsoft.com> wrote in message >> news:B7AA7B49-BAB5-4A9F-B240-B7C1B0021130@microsoft.com... >> > My Windows XP Pro SP2 does not read any USB flash drives at all. >> > Whenever I >> > plug my memory card reader/writer or flash pen drive(1GB), it is asking >> > me to >> > locate the driver for USB Mass Storage Device. Windows was unable to >> > locate >> > and I am unable to use those devices. However, it did successfully >> > installed >> > my USB HP printer and detected my USB 250GB External Hard Drive. Also, >> > sometimes it saids "If you plug your device in a USB 2.0, it will >> > perform >> > faster". All 3 of my USB port are USB 2.0. It is strange. Any help will >> > be a >> > great thanks. Please email me to my email: sam93940_at_hotmail.com(do >> > not >> > spam). >> >> >> >> Stay informed about: USB Mass Storage Device

Aaron

External

Since: Nov 07, 2006
Posts: 36

(Msg. 15) Posted: Tue Nov 07, 2006 11:28 am Post subject: Re: USB Mass Storage Device [Login to view extended thread Info.] Archived from groups: per prev. post (more info?)

Maybe your usb host controller is not usb 1.1 compliant, or the usb cable is not usb 2.0 compliant "Sam" <Sam DeleteThis @discussions.microsoft.com> :34E54A43-72F5-49C7-9D04-C7845DA37711@microsoft.com... > It is a Sony VAIO vgn-fs742/w. My laptop is always connect to the ac > adapter. > It's not a power related problem. I believe it maybe problems of Windows > XP > not detecting generic USB Mass Storage Device driver. Thanks for your > reply. > > "Pavel A." wrote: > >> It looks like a power related issue. Your devices that work >> (the printer, 250 gb drive) are self powered. >> Bus powered devices even can't enumerate properly. >> Try to conect them via a powered USB 2.0 hub. >> If your PC is a laptop, make sure it is powered from AC. >> >> Sorry, no email. >> --PA >> >> "Sam" <Sam DeleteThis @discussions.microsoft.com> wrote in message >> news:B7AA7B49-BAB5-4A9F-B240-B7C1B0021130@microsoft.com... >> > My Windows XP Pro SP2 does not read any USB flash drives at all. >> > Whenever I >> > plug my memory card reader/writer or flash pen drive(1GB), it is asking >> > me to >> > locate the driver for USB Mass Storage Device. Windows was unable to >> > locate >> > and I am unable to use those devices. However, it did successfully >> > installed >> > my USB HP printer and detected my USB 250GB External Hard Drive. Also, >> > sometimes it saids "If you plug your device in a USB 2.0, it will >> > perform >> > faster". All 3 of my USB port are USB 2.0. It is strange. Any help will >> > be a >> > great thanks. Please email me to my email: sam93940_at_hotmail.com(do >> > not >> > spam). >> >> >> >> Stay informed about: USB Mass Storage Device

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