if that comes back asking for source, what version of win 10 are you on?
right click start
choose run...
type
winver and press enter
if build version is 1607, do the following:
Download a copy of the win 10 iso from
Here - create ISO by telling it you want to make DVD - and then mount that ISO in file explorer (see
Here) and then copy paste the below command into command prompt (admin)
DISM /Online /Cleanup-Image /RestoreHealth /source:WIM:X:\Sources\Install.wim:1 /LimitAccess
Where "X" is the drive letter where the ISO is located. Simply change the "X" to the correct drive letter
If your build number isn't 1607, download the
Windows 10 media creation tool and use it to update win 10. This action could fix win 10 as it essentially installs a new copy of win 10 on PC.