Windows 7: Acpi/tos1901

hi all,i have any problem again in my toshiba L510 with spec intel core i3 m330 windows 7 ultimate 32bit,in my device manager all of the driver was installed but if i see in device and printers,in the computer logo have a yellow sign that mean's need to troubleshoot,after i run the troubleshoot,there's detect one unknown device not installed and that device is ACPI/TOS1901,
i have try look for the device in toshiba site's and search in google but i didn't got the solution,can somebody tell me how to solve that problem,please???





thank's before

First link has the solution :

After the installation of Windows Vista a unknow device is visible in the Device Manager

From the below forum :

Toshiba Support Forums: Unknown device ACPI\TOS1901 in Vista on ...

Bing search :

ACPI/TOS1901 - Bing

hi all my problem was solved,the ACPI/TOS1901 was the ACPI (TVAP) utility,if somebody have same problem as me you can try this link: Model Content Page

thank's 4 all

All windows versions here > https://***************/files/3698906076/TOS1901.zip

BR
Prucho