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

Fix 'Windows Defender Firewall Has Blocked' Error

You see a notification that Windows Defender Firewall has blocked an app or feature. This usually...

Fix Microsoft Store Access Denied Error: Reset App

If you get an 'Access Denied' error when trying to open or download from Microsoft Store, the app...

How to Fix Windows Defender Update Error 0x80070643

If you see error 0x80070643 when updating Windows Defender, it usually means the update failed to...

Clear Windows Update Cache via Command Line

If Windows Update is stuck, failing with error codes, or taking too long to check for updates, a ...

Fix SSH Permission Denied (publickey) on Raspberry Pi