Method two: Recovery by clean installation Also, don't forget reinstall any software since the last backup. Now, if you have made a lot files changes, it'll be recommended you delete all of your files and restore the updated versions using the new backup you created before downgrading back to Windows 8.1. Once the process completes, you'll be back to the previous version of your operating system, in this case, Windows 8.1. Select the operating system you to recover from, click Next, and then Finish to begin with the recovery process.Click Troubleshoot, and then click Advanced options, and select System Image Recovery.While in the Setup wizard, click Next, and then Repair your computer.Quick Tip: If you don't have repair disc, you can also boot with the Windows 8.1 installation media to perform the recovery. Once you have the backup of your files, and you know the apps you need to install, reboot your computer using the 'repair disc', which you're prompted to create after creating the initial full backup. Arranging the list of apps in your system by Installed On.Searching for Control Panel with Cortana.
