Checklists for software errors, setup, and tool workflows.

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Fix WSL Ubuntu Proxy Settings Not Working

If you've configured proxy settings in WSL Ubuntu but they aren't being used by apt or other tool...

Fix OneDrive Sync Port Already Allocated Error

If you see "Port already allocated" when starting OneDrive sync, it usually means another process...

Fix Outlook Module Not Found Error 0x80040154

You open Outlook and get an error: 0x80040154 — "Class not registered" or "module no...

Fix KMS Activation Error: Port 1688 Already in Use

When activating Windows via a Key Management Service (KMS) host, you may encounter the error

Fix Chrome 504 Gateway Timeout When Using a VPN

You're browsing with a VPN active, and Chrome suddenly shows a 504 Gateway Timeout

Ubuntu Command Prompt Not Working After Update: Fixes
After a system update, you might find that the Ubuntu command prompt (terminal) is not working—it...