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

How to Fix Windows Terminal Blank Screen on Startup

If Windows Terminal opens to a blank screen—no prompt, no text, just an empty window—you're not a...

Fix Windows Activation Server Not Available Error

When you see the message "Windows activation server is not available" while trying to activate Wi...

Fix Windows Terminal Permission Denied for Ubuntu WSL

When you open Ubuntu through Windows Terminal and see a 'permission denied' error, it usually mea...

Fix Windows Defender Not Starting Due to Dependency Conflict

If Windows Defender won't start and you see an error about a dependency service or group failed t...

Fix Windows Security Authentication Error 0x80070035

How to Clear Windows Defender Cache Without Rebooting

If Windows Defender is acting up—slow scans, high CPU usage, or outdated definitions—you may need...