Windows

Exit full screen in Windows 11 with F11 or Esc. Exit keys for Edge, Chrome, YouTube, games, Store apps and Windows Terminal, plus fixes when you are stuck.

Find your BitLocker recovery key on Windows 11 at aka.ms/myrecoverykey, a work account, USB drive, printout or PowerShell, then back it up and fix key ID errors.

Edit the Windows Registry with Reg.exe in Windows 11/10: reg add, query, delete, export and import syntax, backups, remote edits and registry policy settings.

Host Process for Windows Tasks (taskhostw.exe) and Service Host (svchost.exe) are core Windows 11 processes. See what they run and fix high CPU or mic use.

Fix system interrupts high CPU usage in Windows 10 and 11: restart, update drivers, turn off Fast Startup and Magic Packet wake, and find the faulty device.

Fix WMI Provider Host (WmiPrvSE.exe) high CPU usage in Windows 11/10: restart the WMI service, find the app sending the queries, and stop it for good.

Run HTML code from Notepad on Windows 11/10: type the code, save it as index.html with UTF-8 encoding, then open the file in Edge, Chrome or any web browser.

Always run Windows Terminal as administrator on Windows 10 with the elevate setting or an admin desktop shortcut. Per-profile option, admin check and undo steps.

Connect Alexa to WiFi from the Alexa app: Devices, your Echo, Device Settings, Change or remove a Wi-Fi network. Echo Show steps, reset and fixes included.

Troubleshooting apps that aren’t working in Windows 11/10: restart, update, repair or reset the app, run SFC, clean boot and reinstall, in the order that works.

Set up Windows Hello on a local account in Windows 11 with a PIN, fingerprint or face, keep a way back in if you forget the PIN, and see what a local account loses.

Windows Installer patch (.MSP) files update MSI apps and sit in C:\Windows\Installer. Why deleting them breaks updates, and how to remove a patch safely.