Step one: Go to my computer/This PC.
Step two: right click on C:\ OS drive
Step three: select properties
Step four: click on the security tab
Step five: click advanced
Step six: select change ownership at the top
Step Seven: click advanced
Step eight: click on find now
Step nine: select administrator(S) then click ok
Step Ten: Click ok again
Step eleven: check box on top "replace owner on subcontainers and objects:"
Step twelve: click on APPLY on bottom and OK
Step Thirteen: close out of all tab so that you can restart you computer.
Step Fourteen: Follow steps one through five to go back to security tab>advanced and make sure the ADMINISTRATORS in the list have FULL CONTROL
Alternate step if the above does not work: open windows defender>virus and protection settings>scroll down to folder control access and turn OFF and leave OFF.