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

Enable Windows Defender After Disabling Third-Party Antivirus

If you've disabled or uninstalled a third-party antivirus and now find Windows Defender is not au...

Fix Windows Update Stuck After Clean Install of Windows 10

You've just done a clean install of Windows 10, but Windows Update is stuck, won't check for upda...

Fix Command Prompt Proxy Settings 502 Bad Gateway

If you see a 502 bad gateway error when using command prompt tools like curl, npm, or git, the pr...

How to Clear SSH Known Hosts and Fix Host Key Verification Failed

Fix Windows Search Authentication Failed in Outlook Sync

When Outlook syncs, it uses Windows Search to index emails. If Windows Search authentication fail...

Fix Windows Activation Authentication Failed Error: License Not Genuine

When you see a message like “Windows activation authentication failed” or “license not genuine,” ...