How to Rollback from Windows 10 to previous version of Windows
                             How to Rollback / Downgrade from Windows 10 to previous version of Windows    Symptom :  When weupgraded  your computer to Windows 10 and would like to rollback your operating system to  its previous version due to compatibility issues, technical issues, or personal  reason, please follow the detail instructions below :   Solution :   1. Microsoft gives you 30 days from the day  you upgraded to Windows 10 to roll back to your previous version of Windows.     2. Before you do so, however, it's a good  practice to back up your data, even though it will remain intact for this  method of roll back    3.  From the Windows 10 Start Menu, click on Settings. > Update and  Security   4.  Click on 'Recovery '   5.  Under Go Back to Windows X (where "X" is the version of your previous  Windows prior to upgrading to Windows 10), click on Get Started.   Note: If you don't see go back to xxx version then you might  have passed the 30 days gr...