My sister machine has a virus... It is blue screening upon bootup...

I cannot access the partitioned HDD to run the restore...

I have removed the HDD and run AVG and malwarebytes on it multiple times using a SATA to USB kit and they both now pass 100% clear... But the machine still blue screens every time...

I can load windows in safe mode but not in normal mode


Is there any better software to run a scan on the HDD?

Can anyone help at all?

Thanks