I should also mention steps like deactivating previous versions, as some activation tools can cause issues if they detect another instance. Also, checking for admin rights might be necessary to avoid errors.
But wait, since KMSAuto is a key generator and activation tool, it's important to remind the user that using it without a valid license is against Microsoft's policy. So I must include a disclaimer at the beginning. kmsauto net 2015 v140 portable install
So putting it all together: disclaimer, steps for portable install, activation process, warnings, and alternatives. I should also mention steps like deactivating previous
Wait, does KMSAuto 2015 v140 have a portable version? Maybe the user is referring to a version where the portable option is part of the download. So maybe after extracting, running the .exe as is is enough. Also, portable usually means no registry changes or installations. So I must include a disclaimer at the beginning
Then, the activation process itself: selecting the product, applying KMS activation. Maybe there's a button to activate. Then confirming success.
Also, there might be alternative methods like using a legal KMS server if they have a volume license. I should suggest that as a proper method instead of using pirated tools.