I purchased a computer that came with Win10 on it and the constant stream of data being sent from my computer overwhelmed my very minimal internet connection. Prior to a computer with Win10, internet access was fine (slow for big downloads, but fine).
I worked with a tech friend on the issue and was counseled to use a Linux OS, which I did. Eventually I deleted Win10 off my machine since it is a smaller SSD.
Fast forward a month or so...I start teaching back at my university and Linux machines are not compatible with the university computer network, which means my laptop locks up the teaching station (who knew). No support provided b/c it isn't a Windows or Mac computer.
So, my tech friend (who is busy and never around) mentioned that I could "just pull back up the deleted Win10 and use that". Problem is, I have no idea how to do this. He mentioned a product key sticker on my computer for Win10, but I do not have that (it is an HP and the only stick on it is for the i7 processor).
I'd prefer to just use Win7, but before rushing off to Ebay to buy that, I thought I'd investigate this option. I personally don't think it is possible, given the dire warnings of "once you delete this you cannot recover it" when it was originally deleted.
Many thanks for the thoughts.