Fix PowerShell Cannot Connect to SharePoint Online Setup - How to Resolve Windows Security File Lock Error 0x80070020-Fix Windows Defender Service Conflicts in Windows 10
Before changing system settings, save your work and note the exact error text so you can compare results after each step.
Extra verification checklist
- Restart the affected app after changing permissions or configuration files.
- Test the same workflow in a clean browser profile or a temporary user account.
- Compare the result on another network if the error may be connection related.
Related Software Guides
Windows Activation Service Unavailable in Safe Mode: Fix
Best Windows Activation Settings After Hardware Change
Fix Missing Windows Security Real-Time Protection Toggle
How to Fix Remote Desktop Authentication Errors
Fix Windows Update Access Denied Due to Permission Settings
Fix OneDrive Error 0x8004de40: Cannot Connect to Server