Ok, what you can try is going to device manager > configured.
On this tab you right click > uninstall device.
This for everyone. Afterwards restart the computer and test again if this persists.
If it doesn't work, click on the windows button and type msconfg.
Go to the system startup tab>advanced options. Check if the number of processors is with the box checked, if it is unchecked and restart the computer and see if it's back to normal.