Troubleshoot 502 Bad Gateway with Curl Commands
A 502 Bad Gateway error means your server (gateway) got an invalid response from an upstream serv...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Windows Activation Dependency Conflict After Update
After a Windows update, you might see an activation error like “We can’t activate Windows on this...
Fix Windows Search Not Working Due to DNS Error
You search for a file or app in Windows, and nothing shows up, or you get an error like "Somethin...
Fix Outlook High CPU Usage and Not Responding
You open Outlook, and it takes forever to load, the CPU meter spikes, or the window freezes and s...
Outlook Setup Cannot Connect to Server: Fixes to Try
When you try to set up an email account in Outlook and see "cannot connect to server," the setup ...
Fix Windows Activation Port Already Allocated & Firewall Errors
When Windows activation fails with "port already allocated" or a firewall-related error, it usual...
Topic paths
Quick titles
How to Fix 'Access Denied' When Installing on WindowsReset Windows Defender to Default SettingsHow to Configure Windows Search to Include Backup FilesHow to Fix Windows Search Not RespondingWindows 10: How to Get Windows TerminalHow to Fix Windows Search Endless Sign‑inResolve Windows Search Update Error 0x80070005Fix Outlook Offline Installer Sync Issues After Installation