Hi. I have a Lenovo Yoga 13 that came with Windows 8 installed. I backed up my system under Windows 8 with Paragon Backup and Recovery 2013. I upgraded to Windows 8.1 and I cannot get my system to work properly, despite hours on the phone with Lenovo tech support. According to the Lenovo rep, the only way I can go back to using Windows 8 is to wipe my entire system clean and start over with factory settings. Can I recover a previous backup I did with Paragon, and revert to Windows 8 that way? Is there a risk in doing so? Thanks.