Checklists for software errors, setup, and tool workflows.

Error 0x80070080002 Windows Update: Step-by-Step Fix

Error 0x80070002 in Windows Update usually means the update files are missing or corrupted, or th...

Fix Windows Defender Real-Time Protection Not Starting

If you see a yellow warning or a message that real-time protection is off, Windows Defender’s cor...

Fix Git SSL Certificate Problem: Unable to Get Local Issuer

You run git clone https://example.com/repo.git and get:

fatal: unable to acc...

Fix Chrome Certificate Error: Invalid Authority SSL Certificate

If Chrome shows 'Your connection is not private' with 'NET::ERR_CERT_AUTHORITY_INVALI...

Fix DNS Probe Finished NXDOMAIN After Changing DNS

After updating your DNS settings—perhaps to use Google Public DNS or Cloudflare—you might see the...

Fix Chrome Status Access Violation by Disabling Hardware Acceleration

If you see a STATUS_ACCESS_VIOLATION error in Chrome, it usually happens when th...