I got boost speed's free key (though their giveaway), at the same time I also got wise care pro's key though another giveaway wise offered.Both brands are good and trustworthy, but Wise offers more for free. You might also consider Glarysoft, while it is not much to look at, it offers a lot.
I prefer Wise myself, I use separate utilities though with no limitations, since they are completely free. Wise Disk Cleaner and Wise Registry Cleaner.
Of the two, Boostspeed is safer to use. Wise Care's registry cleaner has minor issues with false positives and will sometimes delete valid registry keys. Doing so could cause problems. This can be avoided by not using its registry cleaner (you usually never need to clean the registry anyway), or manually checking what it wants to delete to make sure it doesn't want to delete anything that is needed. Having said that, I doubt it would every cause any major issues, but it is something to be aware of. On the other hand Boostspeed's registry cleaner is safe to use as it never deletes needed registry keys. Aside from the minor issues with its registry cleaner, the other functions in Wise Care are safe to use.
I prefer Wise Care, to Boostspeed, but it's just a matter of personal preference. Use whatever works best for you. One thing to consider with Boostspeed, is that in some cases its background monitoring can make your system run slower, but this can be disabled if you need to. If you don't need the tweaking functions in Wise Care and just want to clean junk, then Wise Disk Cleaner would be a better option. It's free and has no registry cleaner. As I already mentioned, you don't need to use a registry cleaner anyway.
Another option to consider is Kerish Doctor. There's no free version, but is safe to use and works very well. Or, you could use none of them and quite possibly your system will run fine anyway. Very detailed thanks, I think I will use wise disk+boostspeed(safe+better cleaning)
Better not get too old one, I got a older version of ccleaner(guess wot happened blue screen)I usually find giveaway copies of WiseCare Pro, so I've been able to use that. But I don't run it at startup or resident; I just use the cleaner and optimizer if there are problems with the system and it's still slow even after I use what's built-in.
For defrag, even with an SSD in the boot, I notice that things eventually slow down, even with the built-in defrag running at default or run manually (and it just trims the SSD and does a regular defrag of the other hard drives, including one where other programs are installed because the SSD will be full). If it's still slow after using anything else that's built-in, like updates, driver updates, sfc etc., then I try a cleaner and optimizer like what was mentioned plus third-party defrag, and for some weird reason it speeds up. That is, programs load faster, together with folders containing many combinations of large and small files, etc.
I've tried several, and results have been mixed, but the one that seems to do a good job is O&O Defrag, where I usually find giveaway copies of slightly older versions.
Windows 10 does actually defrag SSDs when it thinks its needed. Recent versions of O&O Defrag include defrag modes specifically for SSDs. CrystalDiskMark has shown an increase in SSD performance after defragging with O&O Defrag.I've tried several, and results have been mixed, but the one that seems to do a good job is O&O Defrag, where I usually find giveaway copies of slightly older versions.