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

Fixing Windows Security Proxy Configuration Issues

When Windows Security (formerly Windows Defender Security Center) can't update virus definitions ...

Fix PowerShell Cache Clear Permission Denied Error

When you try to clear the PowerShell cache (for example, deleting the $env:Temp\* fi...

Fix Microsoft Store 404 Not Found Error

Seeing a 404 Not Found error when opening the Microsoft Store is frustrating, but it's often fixa...

Fix 'Port Already Allocated' Error After Windows Update

After a recent Windows update, you might see an error like 'port already allocated' when starting...

Fix Outlook High CPU Usage Caused by Antivirus Scanning

Symptoms and Likely Cause

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

Microsoft Teams Not Connecting to Internet: Fixes to Try

When Microsoft Teams won't connect to the internet, you might see a spinning loader, a message li...