Save states lost

[Stingeris]

Hello. My problem is:

Did not play game on ppsspp for 3-4 days. After loading games after i noticed that all of my save states are gone. This does apply to all games.

Changes done to my pc ware:

Reinstalled antivirus program: (kaspersky 2013).
Windows update: for Net framework 3.5.1 and security update
Java 7 51 update(deleted previous version before instalation).

Thats it. Any of these might be the couse ?

[Asferot]

Nothing should have happened to them from anything you do in your PC...
And Just a suggestion. Use the actual ingame save function it will free you from loads of headache in the future..