Previous System Restore points are erased

My system restore points are erased every 24, 48 or 72 hours. It appears to be random. I use XP home edition. I use XPfire wall. I use McFee & it is updated automatically. I have 60 Gig of free space on my hard drive. I have checked for a virus with both McAfe & Stinger. No virus detected

 

What amount of space do you have allotted to system restore?
[start/right click My Computer/Properties/System Restore/Settings]

 

It is set @12%

 

One last 'obvious' question .... the restore points removed are from an earlier date[other than recently], or all restore points?

 

All restore points are deleted!

 

try here;
http://support.microsoft.com/kb/q301224/

 

Been there & looked @ it. I do not have an issue with any of the items discussed.

 

hmmm,odd.I'll see if I can find anything while others weigh in.

 

Is the disk being defragmented by yourself or by a program? I've done it once and lost all restore points.

 

Have not done a defrag since this problem started