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Question
Wednesday, July 12, 2017 2:29 PM
I have a machine that came from the OEM with Windows 10 Pro, 64 bit. After a few months of reliable service, the mouse stopped working. I used Device Manager and found the driver file mouclass.sys appeared to be corrupted. Device Manager shows the file as "not signed" and from "author unknown". Aside from losing the mouse, the machine still works fine.
I have had no luck attempting to replace this file. I have the 56k file from a laptop with the same build on a thumb drive. The problem is that even as an administrator, I don't have permissions to modify this file (in the Windows\System32\drivers folder).
Operating System Reset failed. SFC failed. I don't want to rebuild this computer or buy another license for Windows 10 if I don't have to. Any help is appreciated.
All replies (6)
Wednesday, July 12, 2017 6:46 PM | 1 vote
In Device Manager have you tried on mouse double clicking to open its Properties, then go to the Driver tab and then Uninstall from there. That removes the driver then reboot and Windows will install a new driver.
Thursday, July 13, 2017 2:10 AM | 1 vote
Hi ，
As Mr Happy said, we could uninstall this driver in Device Manager, then reboot the machine as a test. Windows will try to install a new drive. Or you can download the last version of Windows 10 compatible drivers from the device manufacturer website and install.
I see that you are also trying to reset your system, if it does work, we could try to perform an in-place upgrade repair to refresh the machine. Boot from a Windows 10 ISO, choose "Upgrade" install. It won`t affect the personal files. Refresh the machine like reset system, But, it allows you to keep all your files, settings and apps. No product key is required. Activation is automatic.
Best regards
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Monday, July 24, 2017 7:58 PM
Thanks, Mr Happy. I tried that. Unfortunately, Windows doesn't remove the driver when the mouse is uninstalled, it only disassociates the driver with the device. After reinstalling the mouse, windows defaults to the same driver file, even though the driver file itself is corrupt. Thanks for the suggestion, though!
Monday, July 24, 2017 8:01 PM
Rick_Li, this sounds like the way to go. The system reset didn't work, but maybe downloading the iso file and trying the "upgrade" install will do it. I will post results.
Monday, July 24, 2017 8:37 PM
Rip out the older driver file and use the one off the mouse disk and reboot
Monday, July 24, 2017 10:02 PM
Rip out the older driver file and use the one off the mouse disk and reboot
Can you provide further details on how to achieve this please? (beyond the advice already posted)