Laptop (High Brooms TN4)

Toshiba Satellite quite old but was fast. Unfortunately it recently went blank screen, probably something wrong with its internal power supply, I guess. Battery runs for 30 minutes or less. It had been running reliably for years. Secure boot did support dual boot Lubuntu and Windows 10. I have installed Windows 11 on a 160G HD which should work once the laptop is fixed.