Having used many defrags over the years, including some excellent free ones, I finally decided to pay for this one, after trying the 30-day trial, which is absolutely full-featured. Main reason for looking afresh at defrags is that I am now using some SSD drives. Having read scare stories about defragging SSDs, I took the trouble to do some thorough technical research. Almost all defraggers have some sort of SSD option, including Windows 7,8,10 built-in one, but differ a lot in what they actually do. In the end, a safe bet is to NOT defrag SSDs at all, but some data reorganisation (not simple defragmenting) is beneficial to performance and life-time if done intelligently (and not too often). So I ended up comparing the established well-known products. Diskeeper offers good solutions for both HD and SSD drives, as does PerfectDisk (and O&O among others) but these two both additionally have intelligent algorithms which avoid much fragmentation before the data is actually written. This is a VERY good idea whatever kind of drive! Having free-trialed both, I am satisfied that both do this very effectively. Both are set-and-forget, and default to sensible options too. Factors which led me to prefer PD over DK are: 1. PD can operate on USB-connected devices; 2. PD offers more optimisation options, especially for non-SSDs; 3. I believe the PD option for SSD is optimal; 4. PD costs quite a lot less!
I would have to say this is the most thorough defragmenter out there. The whole program is very stable, runs great, has other great options like the space management report and others. Stealth patrol works great, optimizing as it goes, had no issues with slowdowns.
Not often do I feel a software is worth the asking price, but I would definitely say this is. Two thumbs up and 5 stars.
I used PerfectDisk 8 to the final build nearly 2 years and never have any problem to my PC. It make my hard disk working so much better than before I used this software! It fast, smooth, not resource hog (if u have more than 1GB RAM), nice interface, and so easy to use. No other defrag disk software can beat this one in term of price and features. One of the best is boot time pagefile defrag and screensaver disk defrag. The new version of PD 2008 has coming out but I'm not really sure I want to buy it yet, because this version 8 still work perfectly to me. I think I just wait until the latest version's build have no bug at all. If you are PC maniac, buy it and you'll love it!
Read all 6 user reviews...