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

Fix Chrome Authentication Failed Certificate Error

When Chrome shows "authentication failed" with a certificate error, it usually means the browser ...

Fix OneDrive Sync Version Mismatch Error

You open OneDrive and see a sync error: "Version mismatch." This usually happens when your local ...

Fix Outlook High CPU Usage Caused by Antivirus Scanning

Symptoms and Likely Cause

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

Fix 7-Zip 'Unsupported Archive Format' Error

When you try to open a file with 7-Zip and see “Cannot open file as archive: unsupported ...