Norton Utilities deleted Restore Points

 

On 2012-09-19 (2 days ago), I installed Norton Utilities 15 (on a Win7 computer) & did several tasks, which I thought were "plain vanilla" & wouldn't cause any damage.  The 1st (auto) scan found "problems", which I repaired.  I defragged the registry (& restarted).  I began shredding the recycle bin, but stopped (gracefully)  at 34 of 253 "items". 

 

Today, the 1st time I tried to scan (Canon LiDE 70) after installing NU15, I get "Unable to scan. Make sure that there is enough space on the target disk." There is 130GB of free space on the target disk. This is the 1st time I've had this problem. Scanner has always worked before.

 

I thought Windows Backup/Restore might be the solution.  I have a Restore Point created every night.  But, lo & behold, my earliest Restore Point is 2am 2012-09-20 . . . after RU15's "fixes".

 

RU apparently deleted my restore points.  I assume I'm just SOL in my present situation, but how can I insure that restore points aren't deleted again?