This is not mine! I just found it ages ago really helpfull tool though.
I use malwarebytes and it does show as a virus tesario some crap it isnt infected but it does activate windows 7 8 10 i guess thats why it shows as a virus. I have used at least 3 times no problems run it as admin choose which version of windows to activate and restart after you
have picked the version and let it do what it does takes 30 seconds roughly. Then delete it and restart pc it will be activated Enjoy