Restore Points

WIN7Home Premium
I just changed my BIOS logon password after a restart
When Windows started I got a message in the notification area reporting that it was installing the driver for a new device and then installation failed:
no device driver
I have an entry in Device Manager named unknown device which has no driver
When I looked through Device Manager I couldn't find anything that was missing
I decided to do a system Restore but there was only one Restore Point, for November 15th
I know that there were restore points created since then and all of my other restore points are missing
Could somebody please help me

 

This error for the device that has no driver could be a Faulty Hardware or Firmware.

Read this for more info
https://support.microsoft.com/en-us...wn-devices-in-device-manager-in-windows-serve

 

The first question here is why?

How did you check how many restore points you have?
In the system restore window to find out the REAL number of restore points you have to click on 'show MORE restore points' It does NOT show them all without checking that option.