It may be of interest I have had the following experiece the sequence was;
1.A couple of weeks ago my score was 97/86 I ran an agressive scan the score changed to 98/92.
2.Because I was seeing some irregularities I reinstalled the last backup. New score back to 97/86.
3.Long story short,replaced my graphics card.
4.After doing some general maintaince ie disk cleanup defrag New score 97/86
Note: All done with version previous to .590
5.Installed .590 over previous version
6.No jv16 tools run except quick system analysis Score 100/98
7.Ran registry Cleaner in Normal mode removed and fixed various. New Score 100/100
Not complaining score now is always 100/100 jjust curious bout the change in scores without any input from me. Though it may also help the original OP keep his composure