A lot of folks are worried about Windows 10 and the automatic upgrades that Microsoft has announced. So to begin with, if you are running Windows 7 or Windows 8.1, and if you have the Windows Update KB3035583 then you will most likely see Windows 10 in the near future if you haven’t already. Some may ask “What!?!? I didn’t reserve a copy of Windows 10!” Microsoft was offering the registration process so that the “final” version of Windows 10 can be downloaded to your PC ahead of the July 29 launch so you won’t need to fight half the planet all downloading it at the same time. This means that you may have already downloaded Windows 10 on your machine and it’s just sitting there waiting to run. Don’t fret and go crazy, you are not doomed; I’m going to show you how to revert back to you previous install and have Microsoft wait to upgrade you.
To be honest, I am running Windows 10 on my production machine and have only had one minor issue that was easy to get around. The issue you ask? The new browser, Edge, will not in any way run Java, so those sites that need Java you need to use the “Open in Internet Explorer” option in Edge or use Chrome/Firefox.
With that being said, I understand some folk’s hesitancy to upgrade; Microsoft has not had the greatest history with upgrades. So beyond that, this will focus on how to revert back an installed Windows 10 machine.
Fortunately, for the first month, it’s dead simple! Under Settings, then Update & Security, there you will find Recovery. For one month after you have upgraded to Windows 10, you can downgrade with a click of a button. Currently, this appears to be the only way to downgrade your PC from Windows 10 back to 7/8.1. It is suggested to have a backup handy to have a way to go back to, but for savvy users having Windows 10 on a second partition is the way to go. This can be done in one of three ways, but that will be covered in another post.