Fix 'Windows Security App Not Installed' on Windows 10
You open the Start menu, search for Windows Security, and nothing shows up. Or you see a message ...
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View listFix Chrome Proxy Authentication Failed Errors
When Chrome shows 'proxy authentication failed' or 'ERR_PROXY_AUTHENTICATION_FAILED', it usually ...
Fix Outlook Not Opening After a Recent Update
After a Windows or Microsoft 365 update, Outlook may fail to open—no window appears, or it crashe...
Stop Windows Search Service to Free Up a Port
You might need to stop Windows Search if it's holding port 10243 or another port you need for dev...
How to Fix Outlook DNS Error When Sending Email
You're composing an email in Outlook, hit Send, and get an error like "Your server does not suppo...
How to Fix Outlook High CPU Usage Caused by Add-ins
If Outlook is using 50% or more of your CPU for no obvious reason, an add-in is often the culprit...
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