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

How to Fix WinRAR Checksum Error and Configuration Settings

If you see a 'Checksum error' or 'CRC failed' message in WinRAR, the archive is likely damaged or...

Fix Outlook High CPU Usage Caused by Antivirus Scanning

Symptoms and Likely Cause

You notice Outlook consuming 50% or more CPU, making your syste...

How to Fix Windows Update Error 0x80070422

If you see error 0x80070422 when trying to run Windows Update, it usually means Windows can’t con...

How to Fix Git Push Rejected (Non-Fast-Forward)

You run git push and get a rejection: ! [rejected] main -> main (non-fast-forwar...