Checklists for software errors, setup, and tool workflows.

Fix Windows Activation Gateway Timeout on a Domain Network

You might see a Windows activation error like "We can't activate Windows on this device because t...

Fix Windows Search Proxy Error 0x80070490

If you see error 0x80070490 when using Windows Search, it usually means a system component is mis...

Fix OneDrive Sync Error 0x8004de40

OneDrive sync error 0x8004de40 typically appears when you try to start or resume syncing. The err...

Fix Outlook Email Sync Failed on Ubuntu

Outlook email sync fails on Ubuntu: what to check

If Outlook (via web browser, Evolution,...

How to Fix Remote Desktop Error Code 0x104

When connecting to a remote desktop, error code 0x104 typically appears as a pop-up saying "The r...

Fix PowerShell Assembly Cache Not Updating

You’ve updated a .NET assembly in the Global Assembly Cache (GAC) or copied a new DLL into a modu...