i love the software

First, it's OK to defragment an SSD, but it should NOT be done often. In fact, because access time to data stored on an SSD is many, many times faster than access on a spinning hard drive there is only a slight benefit to defragging an SSD and that would only be if the drive is largely filled up and you had installed and uninstalled a lot of programs, games, etc. so that a considerable amount of fragmentation has occurred. In other words, most users will rarely, if ever, need to defragment an SSD.
Second, Windows 10 optimises your drives by default which may, at times, include some defragging of your SSD.
Third, today's Giveaway is surely aimed at Windows XP users due to its lack of TRIM and its less efficient defragmenting. Another point worth mentioning is that almost all SSDs have a built-in feature called garbage collection. This feature operates like TRIM except that it is activated periodically by the drive's own controller software rather than by Windows every time you delete something and the computer is idle for a few moments. So, garbage collection ensures that SSDs used for Windows XP and other operating systems which lack TRIM will still be tuned up and keep running smoothly.

I think iObit's Smart Defrag is one of the more popular defrag apps out there, which differ mainly in how they decide what files should go on the fastest part of a conventional hard drive partition. They use Windows itself to do the actual work -- deciding what goes where, and how long it takes to analyze the files & make those decisions, can vary from one defag app to the next.

Windows uses the FAT32 &/or NTFS file systems, which store data in small chunks -- when it writes a file to disk [or other storage, e.g. a USB stick], it fills up one sector, then the next, then the next & so on until all the data is written & stored.
ntfs[.]com/hard-disk-basics.htm

On a conventional hard drive read/write heads move back and forth to access all of the storage area on the circular platters where data's stored. If the sectors making up a file are scattered about all over that storage area, those heads can have a lot of jumping around to do just to read that one file. Defragmenting a conventional hard drive moves the sectors making up each file so that they're *physically* in sequence. At the same time all files are consolidated towards the beginning of the partition -- why you'd run a defrag before shrinking the size of a partition. Optimizing a conventional hard drive puts the files you use most often [or those for a game, or those that Windows uses to start etc.] close together, so again the heads don't spend so much time jumping around.

Flash memory doesn't have the same physical limitations as a conventional hard drive, so the physical location of the sectors making up a file are irrelevant. A SSD is likely to spread sectors that are in use around, so that each small storage unit gets roughly the same amount of use -- the memory chips in a SSD have a finite lifespan, i.e. you can read/write only so many times before the chip fails. A conventional hard drive OTOH works until it doesn't -- it may fail sooner or later than the average lifespan for that make/model. When a conventional hard drive's running, IOW the device using it is on, restricting the number of reads/writes is thought to have no real impact on its lifespan -- restricting &/or reducing writes to a SSD does prolong its life. Logically running a defrag on a SSD will reduce it's lifespan, and may counter its built in load balancing.

Since TRIM is mentioned, what is it? If a one is recorded on a conventional hard drive, to change it to zero you just write zero in the exact same place. To do the same thing with a SSD, you 1st have to clear the one, then in a 2nd step write the zero. That takes longer, so SSDs, on their own or when Windows or an app tells it to, *proactively* clear storage that's no longer in use [e.g. you deleted the file], so writing data only takes one step.

In general, IObit develops outstanding software, so I suspect this Defragger is top notch; the only problem I have with it is that it is IObit. Have not been an IObit fan since the turn of the century. Not a Norton fan either, for the same reasons.

Correct me if I am wrong, but doesn't Windows 10 have a defrag that works automatically? I seem to recall reading that a couple of years ago. I used to defrag on Windows 7 on a monthly basis, and I had it already set to do so weekly on its own. The manual defrags I did monthly almost never needed because of that, and fragmentation never got over 1%.

Since getting Windows 10, I have not been able to even see the defrag feature. Can this let me see how my HDD is doing?

Been using iobit products for almost a decade. I love them! I have the pro version of advanced system care! Installation and registration were flawless!

Had this a few years back, and after about a month had several corrupted files on a 1 Tb hdd. Found this to be the culprit by running tests on an ext hdd, and, same result: corrupted video files. BE CAREFUL! Caveat emptor!

The Pro Edition is supposed to have an SSD module which does something called "Trim" which is designed for an SSD. However the box shot says it's pro while the product description on GOTD does nothing to clarify if it is or not. A bit confusing if you ask me.

I've used IObit Smart Defrag Pro for about a year. It's set to run with windows and auto defrag. Works fine for me ...no issues on Windows 10, 64 bit. I can recommend it.

Wery good program!

Registration key are not accepted.

After using an older version of Smart Defrag, it uninstalled itself. I scanned with my antivirus and used anti-malware programs and found nothing that could have caused it. It was simply gone.

I think this is a great program

DO NOT use this on a SSD Drive!! Doing so, will shorten the life of your SSD Drive, GREALY!!