As it turns out, you can upgrade XP and Vista to Windows10 free too( as long as your system can support Windows10 ). It is not just Windows7 and 8/8.1, there is a work around/loop hole. HOWEVER, with that said you have to do it manually and it takes a little effort on your part. WARNING - have access to another computer that can get online in case you need to download something or look something up OR have the installation files for a browser you can install after the 10130.iso finishes up!!! The 10130.iso file does not include any type of browser. Not IE or Edge. At least the one I downloaded didn't. I had to download the Media Creation Tool on my desktop and transfer it to the laptop using a USB stick to finish. 1. - Download Windows10 build/version 10130( you need the 10130.iso file ). Microsoft no longer has this on their website( it was at one time )but it can be downloaded from "unofficial" sources. 2. - Create a bootable USB stick using the 10130.iso file 3. - Boot to the USB drive 4. - Install Windows10( you have options from leaving some stuff to a total wipe of all info on the drive/partitions ). 5. - Once installed you go to System and under activate you enter a generic code( available online )that is recognized by Microsoft and allows it to be activated as a genuine Microsoft version of Windows. 6. - Once the 10130 version of Windows10 is activated, you then need to download the Windows10 Media Creation Tool from the Microsoft website and do the Windows10 upgrade. It will actually "upgrade" Windows10-10130 just like it does Windows 7 and 8/8.1. When it upgrades, it will install the newest version of Windows10 and then activate it automatically because the 10130 version is recognized as a previous genuine version of Windows and is new enough to be included in the free upgrade. 7. - You can do a clean install after the upgrade procedure if you wish by using the system recovery tools which allows you to reload to the factory image which reinstalls Windows10 as a clean/fresh install. I am not sure this is needed like it is when upgrading from Windows7 and 8/8.1? I didn't do it myself on my Sister's laptop. It takes a little time with all the OS installations but I can verify it does actually work, on Vista anyway, and that the install is activated as genuine Microsoft so you can get updates and such. I ended up with Windows10 Pro on her laptop when it was all done. I just did the update tonight on my Sister's laptop and it is running great so far. She got her laptop at the same time as I got mine. Both came with Vista and free Windows 7 upgrades. I found out tonight, when I went to work on it for her, that she never sent the info in for the free Windows 7 disc. Obviously it is too late so I assumed she was out fo luck for the free Windows10 upgrade. Just for S&G's I did a search about XP/Vista free Windows10 upgrade and discovered how to do it. My Sister is in a nursing home and can't afford to buy Windows10 outright and seeing as 10130 was offered as a free download by Microsoft and they are still accepting the generic code for it I figure no harm no foul. I am unsure if it would be ok to post a link to the 10130.iso download( safe version )or not so PM me if interested. I will give you a link to a really thorough walk through for it that also has the product key/code as well. Hope this helps some of you out.