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

Fix Windows Security Won't Turn On Real-Time Protection

You click the toggle to enable real-time protection in Windows Security, but it switches back off...

Debug SSH Public Key Authentication Failure: Step-by-Step

You're trying to SSH into a server with a public key, but you get "Permission denied (publickey)"...

Windows Update Stuck at Downloading: Practical Fixes

If your Windows update is stuck at the downloading stage, you're not alone. This often happens du...

Fix PowerShell Authentication Failed Credentials Error

Windows Defender High Memory Usage Troubleshooting Checklist

Windows Defender (Microsoft Defender Antivirus) sometimes uses more memory than expected, especia...

Fix Windows Search Blank Screen Error 0x80070002

If you open Windows Search and see a blank screen or empty results along with error code 0x800700...