While turning on the machine, keep pressing f8 on the keyboard until a selection screen appears. In the choices, it will say safe mode. Choose that.
You could install Malwarebytes, run it and update the definitions before doing that. Then once in safe mode, use it to scan there too - in addition to clearing the temp folder manually.
You could install Malwarebytes, run it and update the definitions before doing that. Then once in safe mode, use it to scan there too - in addition to clearing the temp folder manually.