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

Fix Windows Security Error 0x80070643 on Ubuntu Dual Boot

If you see error code 0x80070643 when running Windows Security or Windows Update on a dual-boot s...

Fix Remote Desktop Cache Permission Denied Errors

When you connect to a remote desktop and get a 'permission denied' error, it often isn't a networ...

Fix Windows Activation Path Not Found Error 0x8007007b

When you see "Windows activation path not found" with error code 0x8007007b, it usually means the...

Fix OneDrive Sync Error 0x8004de40 on Ubuntu

If you see error 0x8004de40 when syncing OneDrive on Ubuntu, the sync client usually fails to aut...

OpenVPN Connection Failed: Check Firewall Settings

You see "connection failed" in your OpenVPN client log. The server is reachable, but the handshak...

Fix 'Windows Defender Not Recognized' Error in Command Prompt