Restore Point - only one is availabile

[Louise]

Win XP Home - 15 gig of free hard drive space. System
restore is turned on for Drive C.

I have two removable drives (USB hard drive and USB DVD
Writer) which show up in my computer when they are turned
on, but they are turned off except when actively in use.

No matter how many restore points are created, by the
system and/or by me, the only restore point available (bold
calendar date), is the most recent restore point from the
same day. All the others from previous days keep
"disappearing".

There are two hard drives listed in my computer: C:/ - my
"real" hard drive and F:/which is a small partition put on
by Dell when they setup the computer.

Both hard drives are listed in My Computer.

I have system restore turned off for drive F as it is a
very small (virtual) drive.

I have system restore turned on for drive C with the
maximum amount of disk space allocated.

Why is Windows constantly deleting all but the most recent
restore point?

 

[Louise]

Win XP Home - 15 gig of free hard drive space. System
restore is turned on for Drive C.

I have two removable drives (USB hard drive and USB DVD
Writer) which show up in my computer when they are turned
on, but they are turned off except when actively in use.

No matter how many restore points are created, by the
system and/or by me, the only restore point available (bold
calendar date), is the most recent restore point from the
same day. All the others from previous days keep
"disappearing".

There are two hard drives listed in my computer: C:/ - my
"real" hard drive and F:/which is a small partition put on
by Dell when they setup the computer.

Both hard drives are listed in My Computer.

I have system restore turned off for drive F as it is a
very small (virtual) drive.

I have system restore turned on for drive C with the
maximum amount of disk space allocated.

Why is Windows constantly deleting all but the most recent
restore point?

I went to the event log and discovered that there are
almost daily information messages saying that system
restore has been turned off because there isn't enough room
on the drive. The message is completely unclear and I fear
it is referring to one of my removable USB drives. For
example

"The System Restore service has been suspended because
there is not enough disk space available on the drive \\?
\Volume{d484d0c2-3996-11d8-971b-806d6172696f}\. System
Restore will automatically resume service once at least 200
MB of free disk space is available on the system drive."

Then, an hour or so later there is another information
message stating that system restore has been turned on
because space has been freed on the drive. BUT THERE WAS
ALWAYS PLENTY OF SPACE ON THE C DRIVE.

When it turns on and off like this, does that delete all
previous restore points?

Also, does it seem that the problem starts when a removable
drive is turned on?