The two actions will work only when the system shut down completely. Press F9 will not restore the system to factory default setting when booting the system.Press F2 will not enter BIOS configuration when booting the system.When the user press the power button of the system, it will boot the system to the user default setting. : Only save the system booting information. When the system restore from the, it will go back to the last user setting. : Save all of the data including the running program. That I appreciate very much.In Windows 8 is similar to. It works like a charm everytime, and all I have to do is run the program and everything is clean and I'm absolutely 100% satisfied, not only with the program, but also with the quick reply when I needed advice on how to manage the problems I might have had. 'I don't know how I could be more satisfied with Smart Defrag v8. From now on, the French IT magazines strongly recommend Smart Defrag, including with Windows 10 Optimiser, for a more robust and accurate diagnosis with options to speed up the system startup.' Roland LALIS So I invested for IObit in the French translation. It was perfect for them, except the English language. 'I use Smart Defrag since its creation on several PCs and from the beginning with the members of my computer club we were able to see the continuous improvements. Definitely recommended!' Edward Lee Ah Yen

Smart Defrag has a very small memory foot print so it won't slow down your system.

As with all IObit software it is easy to install, use and very reliable. 'I run a combination of RAID 0 SSDs and RAID 0 HDDs and use Smart Defrag Pro to analyse, defrag and keep my drives running at peak performance.

I am well pleased with this product.' William Howes Iobit is constantly upgrading and striving to make the product even better as time goes by. Having My 'Smart Defrag 8 Pro' set to auto defrag, and running a 'Defrag and Optimize' once a week, keeps my system running smooth and well. Being an older machine, my computer system tends to become fragmented quite easily. Because I am running an older machine with 6 drives, including 2 external, I find that Iobit's 'Smart Defrag 8 Pro' has served me very well. 'I have been using Iobit products for a good many years now. Smart Defrag's updates include a new defrag engine, specialized Game Defrag, a cool new look, and many more language options (35 and counting).' Cnet Its SSD Trim tool automatically enables system tweaks that typically require experience to apply. 'IObit Smart Defrag optimizes your PC to take full advantage of SSD performance while defragmenting your hard disks.

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