I've used Auslogics Disk Defrag (ADD) for several years. I was initially attracted to it because of its speed vs. Windows Pass 1, Pass 2, Pass 3, . . . ad infinitum. . . takes forever. However, ADD's behavior concerns me/makes me think it might be at least partially a scam. Here are the reasons I think it might be:

• First run: ADD finds and deletes (example) 13,000 temp files and finds 300 fragmented files, which it defrags.
• IMMEDIATELY after that run, I run it again. It finds and deletes 400 temp files and defrags 37 fragmented files. Mind you, this is after I HAVE DONE NOTHING ON THE COMPUTER following the ADD run!!!
• I can repeat this multiple times, and it always finds a few temp files and some fragmented files.
• If I select "Defrag & Optimize", same scenario. Go back IMMEDIATELY AFTER RUNNING IT and it finds fragmented and non-optimized files.
• If I then use the computer to visit a few websites and look at my emails, then run ADD, it again finds 12,000+ temp files and a huge number of fragmented files.

Doesn't make sense. Can anyone explain this?

 

Which OS are you running this on? There are so many things that run and generate files in the background, it's hard to narrow down.

I will say that I've stopped using third party defrag utilities and am just using the built in WIndows defrag. Since Windows 7 it's been sufficient. Windows 10 it's great, it handles SSDs wonderfully.

Running Win 7 on my desktop, and that's the computer I use it on. Have a Win 10 laptop/don't use it there.

Unfortunately it's hard to say for sure what it's deleting and where, unless it produces log files.

If you like, just use the Windows 7 built in defrag.