Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

After a Windows update, the search bar may stop returning results or fail to open. This usually h...

If Chrome is acting up—slow, crashing, or extensions misbehaving—you might need a fresh profile. ...

You try to open a password-protected .7z or .zip file with 7-Zip and get the error 'Cannot open a...

You start a Jupyter notebook, try to run a cell, and see a message like "Kernel error" or "Connec...

You see "Windows activation failed due to product key mismatch" after entering a key or during an...

When you try to back up or restore Windows activation using the slmgr /upk or ...