If you are one of those fans who have already jumped on the Windows 10 phone use bandwagon, you are probably having the time of your life. For some the fun may have worn off though, and maybe they would rather return to the familiar Windows 8.1 setting. This can be done too, but you would need a few tools first.
Windows Phone Recovery Tool is the obvious first choice when moving to a generally available OS version. This could be use with any phone running Windows. But for Lumia phones, there is also the other option – the Lumia Software Recovery Tool, which as the name already tells you, is for this model alone.
Lumia Software Recovery Tool
Let us see how reversion works on a Lumia 635. Say this one has Windows 10 tech preview at the moment, and what we want to do is replace it with Windows 8.1. The personal data will obviously be erased. So back that up (Settings > Update & Recovery > Backup). This should back up everything on the cloud, but if you want to make sure, go to Settings and hit Back up now. There is probably relevant Windows help and support to be had elsewhere.
- Install the tool and connect the phone to the PC. Wait for it to be recognized, and hit Install.
- Affirm when it tells you that all data will be deleted when the transition happens. You will also be suggested to remove the SD card. Hit Continue and the recovery will start.
Windows Phone Recovery Tool
This one works much the same way as the Lumia tool. You install the application, launch it, connect the phone and wait for recognition. After that, you click on the phone when it is found, and follow instructions the same way as with the Lumia tool.
With either utility, you would have to wait for a long time for the process to complete. The initial setup will need to be repeated on the phone after this. You could either restore data from a backup made earlier, or start from scratch. Few people take the latter option, because it is obviously tedious, and depriving.
After completing the setup, you can start using Windows 8.1 like you used to before the Windows 10 tryout. It is good to keep one of the recovery tools installed in your PC in case you ever tried another Windows 10 versions and wanted to come back. And a source of Windows help and support if you ever needed it.