Software comparisons, alternatives, and tool decision notes.

How to Fix Windows Remote Desktop Not Working After an Update

After a Windows update, you might find that Remote Desktop (RDP) no longer connects. This is a co...

Fix Firefox Secure Connection Failed Error Due to Antivirus

You try to visit a website in Firefox and see a message like “Secure Connection Failed” or “PR_CO...

Fix Windows Explorer Restarting After Crash

If Windows Explorer (explorer.exe) crashes and then keeps restarting, you may see the desktop fla...

Windows Defender Real-Time Protection Greyed Out: How to Fix

If you open Windows Security and see the real-time protection toggle greyed out, you can't tu...

Fix ERR_CERT_AUTHORITY_INVALID on Localhost

When testing a local web app, you may see ERR_CERT_AUTHORITY_INVALID in Chrome or si...

Fix 'git pull failed index.lock file exists' Error

When running git pull, you may see an error like:

fatal: Unable to create &#...