Knowledge base for software setup, errors, and daily tool work.

Fix Windows Activation DNS Not Resolving Server Name

When Windows fails to activate, the error often points to DNS problems — specifically, the server...

Fix Windows Backup Error 0x80070001 After Update

After a Windows update, you might see backup error 0x80070001. This often means "Incorrect functi...

Fix 502 Bad Gateway After Reboot in Command Prompt

If you see a 502 Bad Gateway error after rebooting your server or workstation, i...

Fix Microsoft Teams Connection Timeout and Permission Denied

If you see "connection timeout" or "permission denied" when launching Microsoft Teams, the app ca...

Fix OneDrive 'Command Not Found' Error on Linux and macOS