I am getting the same problem as Derald Hausmann who posted a thread here some months ago on my Windows Vista 32 bit laptop.
This only started recently and I have not made any changes to my system to account for it. I have a partitioned hard drive with a large amount of free pace on each – 110GB or more. Windows Vista always created restore points daily by default, a bit excessive maybe but that’s the set up.
Now my restore points seem to last a few days till I have two or three restore points saved then are suddenly deleted. I only noticed because my free disc space had gone up from 105GB to 110GB. Any ideas?