Virtual Machines (Windows 10, Ubuntu) work more faster UltraDefrag 10 works well on Windows 11 22H2 beta, also with Hyper-V Virtual Machines. I use SSD. Virtual Machines (Windows 10, Ubuntu) work more faster after the defragment of vhdx. I strongly recommend this useful software. Thank you so much for your products!

I have used UltraDefrag for years I have used UltraDefrag for years. It has only improved with age.

Fast and reliable UltraDefrag does everything I want it to do - and more. It is fast, reliable and stable I can only reecommend it.

I'm stuck with installation of version… I'm stuck with installation of version 10 of UltraDefrag. There is not accessibility in your installation for visually impaired person. I'm furious about this version 10. No problem with version 8 for me but with version 10 there are a lot of problems. With accessibility, with Microsoft Defender. + Eddy François Legrain

Over the past few years Over the past few years, I tested a variety of defrag software, some of which are among the big names in the industry. There is an analysis tool available in Ultimate Defrag which gives a numerical value of the degree to which a defrag job has optimized a hard drive. So far, and among a whole variety of software I gave a try, Ultra Defrag achieved the highest score after a full boot-time optimization (with file arrangement based on time of access in ascending order while keeping the other default settings), which was easily noticeable in the speed of file and application opening as well. The same excellent performance can be maintained by periodic quick optimizations after a full boot-time job, which can be scheduled as an automatic defrag.