Windows 10: find restore point

My son-in-law cleaned my computer and tried to install the new Windows 10 without seeing if it was compatible with my Dell which is about 7 years old. Well it wasn't compatible, which he found out after. I no longer can do anything but email and Facebook. I had a restore point made before leaving on 6 - 24. How can I find my restore point. My windows start at lower left will not come up and I can't search or bring Exell or word up.

:)

 

How To Find A Restore Point Prior To Those Listed

System Restore, under "Choose a different restore point", lists only two weeks ago as the oldest restore point .. but I want to restore to a date two months ago. How can I find restore points that are older than those listed?

 

Restore points being deleted

This is not a pitch but a valid suggestion of a superior alternative.

 

How to delete inactive System Image Restore Points in System Restore

Windows 10 64-bit.
When I click "show more restore points" in System Restore I see a bunch of old "system image restore points" that were deleted in past and do not correspond to any currently active restore points. Clicking any of these old restore points, I simply get an error message saying they could not be found, and to select another restore point instead.I would like to delete these restore points listings but have been unable to do so.
So far, I have tried steps mentioned below without any luck :

Disk Cleanup through (C Properties
Disable System Protection (OFF and ON) in System Protection for OS (C
Disk Space Usage to minimum (slider button all the way to the left then 'Delete all restore points for this drive'),
Delete all shown Restore points in CCleaner (the problem ones do not show here),
Reset Windows Backup to Default in Windows 10 with 'Reset_Windows_Backup.bat' utility.

Any suggestions highly welcome.