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

Fix PuTTY Connection Refused: Check SSH Service

When you see 'Connection refused' in PuTTY, it usually means the SSH server on the remote machine...

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" ...

How to Fix Windows Security Settings Not Saving Changes

You change a setting in Windows Security—like toggling real-time protection or adding an exclusio...

Fix BitLocker Mount Error 0x80070005 on Mac

When you connect a BitLocker-encrypted drive to a Mac and try to mount it, you may see error 0x80...

Fix 'Command Prompt Authentication Failed' – Run as Administrator

When you see 'authentication failed' in Command Prompt, it usually means your current session lac...

Fix Windows Search High CPU Usage Due to Permission Denied Errors

If Windows Search is consuming high CPU and you see "permission denied" errors in Event Viewer, t...