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.
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.
Also, compatibility: KMSAuto 2015 might not work on newer Windows versions. If the user is on Windows 10 or later, maybe it's outdated. But the user is asking for KMSAuto Net 2015, so perhaps they have a specific need for that version.
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.
Then, the activation process itself: selecting the product, applying KMS activation. Maybe there's a button to activate. Then confirming success.
After extraction, there's likely an executable file. The user just needs to run that. But KMSAuto might offer options like activating Windows or Office. The portable version should have all necessary components included.
I should check if there are two versions: portable and standard. If there's a portable version, maybe the user doesn't need to extract anything and can just run it. But often, portable software is the same as the regular version; portability is inherent in the software itself.
Now, the user specified "portable install," which means the installation isn't on the system and can be run from a USB drive or similar. I need to outline the steps for a portable installation. Let me think about the typical process for portable software. Usually, you extract the files, maybe there's a setup.bat or similar script. Since it's KMSAuto, there might be no installer, just a standalone executable.