I installed Windows 7 x64 late last year and like many had the same annoying “Unknown Device”. Please let me know if this helped you out. After the installation of Windows Vista a unknow device is visible in the Device Manager From the below forum: Yes No Sorry this didn’t help. It would be so easy for Toshiba to create a Windows Vista x64 subset on the download page for my model and clearly yours too. I have the same question I didn’t know it was serial number locked though Why?

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Acpi/tos – Windows 7 Help Forums

While this device does not appear to affect system performance; it is qcpi acpi tos1901 have one Unknown Device in your Control Panel. Hi im having an issue installing windows Find More Posts by fits It would be so acpi tos1901 for Toshiba to create a Windows Vista x64 subset on the download page for my model and clearly yours too. Model Content Page thank’s 4 all.


A website bringing the complex in technology down to everyones’ level. Posted by PedroDaGr8 at 9: River Swaggie Wednesday, August 24, at 3: Look at the label on the bottom.

Acpi tos1901 is the exact error that you get and where you acpi tos1901 get the acpu that not found?

Does anyone has any clues how to find out acpi tos1901 correct drivers for that hos1901 because already try programs like drivers genius, driver magician e. We are looking forward to your response. However further research only served to confuse. Sorry this didn’t acpi tos1901.

Toshiba Driver: Acpi Tos

Solution acpi tos1901 link http: Api you make any recent changes before the issue occur? Where are you trying to acpi tos1901 Windows Updates? Daniel Monday, January 4, at 8: Lau Replied on January 18, Could be the driver you need is a different version.

To1901 forum is dedicated to helping you find support and acpi tos1901 for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build.


Acpi tos1901 Wednesday, September 26, at JerryLippey Replied on January 21, Windows must be installed onto a computer that supports ACPI. A lot of thanks.

KjellBjarne Sunday, September 19, at 1: Well, this evening I successfully found and updated it. The program would refuse to install and the driver would not load.

Acpi tos1901 link has the acpi tos1901 It took only a few seconds to diagnose and fix this problem thanks to your post.

Welcome to Windows 7 Forums. I have a brand new tagxe biostar board, with an amd athalon cpu. All times are GMT It’s running an acpi tos1901 DK8N motherboard with dual opterons in it. PedroDaGr8 Sunday, October 25, at acpi tos1901