Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

View list

Fix Windows Search Blank Screen via Registry Edit

If Windows Search shows a blank white or black screen instead of results, the problem often lies ...

Fix Windows Defender 502 Bad Gateway Sync Error

If you see a "502 Bad Gateway" error when Windows Defender tries to sync, it usually means a temp...

Fix VS Code Python Interpreter Not Showing or Selecting

You open the Command Palette, type Python: Select Interpreter, and nothing happens. Or t...

Fix Chrome Profile Auth Error 0x800704cf

You see the error "Chrome profile authentication failed" with code 0x800704cf when trying to sign...

Fix OpenVPN Permission Denied on Tun Device

When running OpenVPN, you might see an error like ERROR: Cannot open TUN/TAP dev /dev/net/t...

How to Fix slmgr.vbs High Memory Usage During Windows Activation
If you notice that slmgr.vbs is using a lot of memory (often 100 MB or more) on your...