***Question: Laptop cannot boot or install windows I have used this device for 8yrs***
Answer: Your laptop may be outdated or at end of support. Microsoft is not responsible for hardware failure in end of support Windows. Other than that advice I gave you, try the steps below.
***Solutions:***
Try Windows Safe Mode.
Check Your Battery.
Unplug All Your USB Devices.
Turn Off Fast Boot.
Check Your Other BIOS/UEFI Settings.
Try a Malware Scan.
Boot to Command Prompt Interface.
~or~
Use System Restore or Startup Repair.
***Bottom Line***: If any of the above steps don't work, you have to bring your laptop to a repair store to get it fixed or replaced. Have a good day!