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

Fix Windows Security Offline Installer Error 0x80070643

You're trying to install Windows Security (formerly Windows Defender) using an offline installer,...

Fix Chrome Authentication Failed by Clearing Cache

You're trying to sign in to a website in Chrome, but you get an "authentication failed" error. Th...

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 Reduce Microsoft Teams CPU Usage During Meetings

If your laptop fan spins up or your video stutters during Teams meetings, CPU usage is likely the...

SSH Key Permissions and Ownership: A Troubleshooting Checklist

If you're seeing "Permissions 0644 for 'id_rsa' are too open" or "Bad owner or permissions" when ...

How to Fix Outlook Slow Performance: Practical Steps

If Outlook is taking forever to load, search, or send emails, you're not alone. Slow performance ...