New
#160
If you don't like it, you can always try to disable "Allow apps to access your account info" by going to Settings > Privacy > Account info and finally toggle the button to "Off". Maybe you can always reboot after that and check what gives.
Allow or Deny OS and Apps Access to Account Info in Windows 10
If Windows insists on using the default account picture, perhaps the workaround is to manually change the default account picture.
Change Default Account Picture in Windows 10
Did you try Open and Use Disk Cleanup in Windows 10 already?
Worth noting while I'm here on this thread, after a clean install of 20H2, Cortana now shows up in CCleaner's Uninstall list.
Having taken the opportunity, while I still can check 'Show' the Cortana button on the Task Bar, clicking on it now does nothing.
Otherwise I'm not seeing any negative repercussions so far.