Press Win + R, and type the following:
c:\windows\system32\SystemPropertiesAdvanced.exe
Click OK.
Does that work?
If it doesn't, run DISM and SFC.
Use the System File Checker tool to repair missing or corrupted system files - Microsoft Support: https://support.microsoft.com/en-au/topic/use-the-system-file-checker-tool-to-repair-missing-or-corrupted-system-files-79aa86cb-ca52-166a-92a3-966e85d4094e