Please try the following:


Open your Windows Settings:



and choose Virus & Threat Protection.


then choose Virus & thread protection settings



Scroll down and in the  Controlled folder access section, click Manage Controlled folder access:




and make sure that Controlled folder access is OFF.




You also need to make sure that you are allowing apps to write to your Documents folder:


Right click on Window Icon on the task bar


Select Settings


In the search section on with Settings, type the word “Documents”


Then select “Allow access to documents library on this device”




Be sure have these settings ON



If this doesn’t help please enable your OneDrive


Right click on OneDrive (Taskbar)


Select More


Then select Settings


Select the Account tab


Then Choose folders


Be sure to have “Documents” checked off


Then select the  Auto Save tab


Then Update Folders


Then Start Auto Save


Be sure to have “Documents” checked off


Then Start Protection