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

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" ...

Fix Windows Update 502 Bad Gateway Connection Issue

When Windows Update fails with a "502 Bad Gateway" error, it usually means the update server can'...

How to Fix Windows Security Network Error on Startup

If you see a Windows Security network error every time your PC starts, you're not alone. The erro...

Clear Windows Activation Cache After Hardware Change

After swapping a motherboard, CPU, or hard drive, Windows may show an activation error or waterma...

How to Repair Windows Search Using the Built-in Troubleshooter

Windows Search not returning results or indexing slowly? The built-in Search and Indexing trouble...

Fix 'Putty Connection Refused' Error on Localhost

When you try to connect to localhost with Putty and get 'connection refused', it usually means th...