Windows shortcuts: quick fixes and useful commands
These are a few Windows shortcuts and quick commands that can save time when you are troubleshooting or trying to get something done quickly.
Win + K: connect to a TV wirelessly
Use Win + K to open the Cast / Connect panel.
Typical uses:
Connect to a TV or monitor that supports Miracast.
Connect to a wireless display adapter.
Notes:
Your PC and the TV need to be on the same network.
If your TV does not appear, check that wireless display or screen mirroring is enabled on the TV.
Ctrl + Shift + Win + B: reset graphics driver
Press Ctrl + Shift + Win + B to reset the graphics driver.
When to use it:
The screen is frozen or black.
Display output looks corrupted.
What to expect:
The screen may flicker.
You may hear a short beep.
Win + R → netplwiz: user accounts / auto sign-in
Press Win + R, type netplwiz, then press Enter.
Useful for:
Managing local user account settings.
Adjusting sign-in behaviour on a shared or lab machine.
Win + R → mrt: Windows Malicious Software Removal Tool
Press Win + R, type mrt, then press Enter.
Useful for:
Running a quick malware scan with Microsoft’s built-in removal tool.
Browser trick: word.new
Type word.new into your browser address bar to open a new Microsoft Word document (Microsoft 365).
Tips:
You will need to be signed in to a Microsoft account.
Similar shortcuts exist for other apps, like
excel.newandppt.new.