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#11
To boot from the infected drive and run any antivirus isn't the correct way to do it. If the virus is under control it wont let you run the antivirus.
I suggest you detach the current OS drive (if a SATA, detach the SATA cable. If a M.2 drive, remove it).
On a spare drive, install Win 10 and Superantispyware and Malawarebyte.
Attach the OS drive, boot from the spare drive and run Superantispyware and Malawarebyte.