I've never seen that happen but like I said, I only use the PIOZR once in a while. Auslogics is good but Puran can do more.
Puran, especially it's PIOZR and boot time defragmentation is the only interesting features which make it worth to try. I don't really care about boot time defragmentation for MFT, registry, pagefile or hiberfil since it's impact to system performance is imperceptible.
I only do monthly full defragmentation + system optimization. Actually Windows 7 Disk Defragmenter is doing a good job already, the only major drawback is it's speed.
Puran system optimization (PIOZR) algorithm seems decent or maybe a bit better than the Auslogics algorithm. That's the only thing which makes me want to spend my time for trying it.
However, after 3 months (or to be precise, 3 times as I only defrag once a month) of using the software and each time resulting with a slight decreased in my drive free space. Naturally, I thought it's because Puran incompatibility with Windows VSS which turns out to be wrong after I find some of my video and iso file in the wrong folder and realize that it's being duplicated after checking my assigned folder to those files.
In the end, I'm back to Auslogics and quite content with it.
