Hi mabbi,
Thank you for the post.
Please understand that compbatt.sys is a hardware driver.
If the issue occurred right after installing updates and you did not install other hardware driver before that, the cause can be that an incompatible hardware driver update was installed on your computer.
Mabbi, have you tried Carey’s suggestion to enter Safe Mode and perform a System Restore?
If so, please do not install the hardware driver update. (Windows updates are listed with numbers like KB***** and driver updates are not.).
In the future, if your hardware devices are working properly, I suggest we do not install driver updates as some updates for third-party drivers listed on the Microsoft Windows Update website may not be the latest ones. Only for customer's convenience, Microsoft offers these devices on its update website. The third-party manufacturers supply the updates of the drivers to Microsoft. Then Microsoft includes these updates in the Windows Updates. When we scan for Windows Updates, these updates will be offered. However, sometimes the manufacturers do not supply the updates to Microsoft in time. Therefore, the version of the driver update may be older than the one offered directly by the manufacturer. If we install these updates, issues may occur.
If you prefer not to let the driver update show on the computer in the future, we can hide drive updates through Control Panel -> Windows Update.
Hope it helps.
Best regards,
Tim Quan
Microsoft Online Community Support
