Other options to consider are:

1. Malwarebytes Anti-Malware

2. Raising the amount of virtual memory used by the system

3. This how to geek guide shows that disk cleanup doesn't really clean-up everything unless you perform a registry tweek. The guide shows how to fix that.

4. Finally a reinstall of the OS is my final option. Windows like to keep a lot of crap

Other options to consider are:

1. Malwarebytes Anti-Malware

2. Raising the amount of virtual memory used by the system

3. This how to geek guide shows that disk cleanup doesn't really clean-up everything unless you perform a registry tweak. The guide shows how to fix that.

4. Finally a reinstall of the OS is my final option. Windows likes to keep a lot of crap