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

PowerShell Profile Cache Location and How to Delete It

If PowerShell starts slowly, shows errors on launch, or seems to ignore recent profile changes, a...

How to Fix Command Prompt Blank Screen on Windows 10

If you open Command Prompt and see only a blank screen—no prompt, no cursor, just an empty window...

Fix OneDrive Connection Refused Error 0x8004de40

You see OneDrive error 0x8004de40 with the message "Connection refused." This often happens when ...

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 Terminal Update Not Working After Windows 11 24H2 Upgrade

After a major Windows 11 update (version 24H2 or later), Windows Terminal may stop updating prope...

Fix Windows Security Service Stopped Working in Windows 10

If you see a notification that the Windows Security service has stopped working, your antivirus o...