Re: Is the windows 10 registry tweak batch file from jsanzsp safe?

I'd suggest to customize your windows with MSMG toolkit yourself.

http://www.majorgeeks.com/files/details/msmg_toolkit.html
Wow, for future installs, maybe.

Do you run Windows off a usb stick, then??

no, ssd, because of huge virtual memory and faster everything compared to cheap usb sticks.