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

Windows Security Not Opening? Here's How to Fix It

You click the Windows Security icon in the taskbar or try to open it from Settings, but nothing h...

Reset Windows Search Database in Windows 10

If Windows 10 search is returning no results, taking too long, or showing outdated files, the sea...

How to Fix Remote Desktop Certificate Expired Error

When you connect to a remote desktop and see a message that the certificate has expired, it usual...

Fix PowerShell Authentication Token Expired in Automation Scripts

When running PowerShell automation scripts that interact with cloud services or APIs, you may enc...

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED on Windows 10

If you see ERR_TUNNEL_CONNECTION_FAILED in Chrome while browsing on Windows 10, ...

How to Fix Outlook Rate Limit Error in Office 365

Understanding the Error

You may see a message like "Too many requests" or "Server busy" ...