This is a long one, sorry, but one I've been meaning to vent about this for some time. Unless you're really into computer maintenance and Fix-It programs, you might want to sit this review out.
Let me start by framing the point that my "opinions" are based on my experiences, thoughts/ideas shared by friends, and a good deal of research. This review focuses on Glary Utilities, but is, in fact, my opinion of all "Fix-It-All" programs available. So no personal attack Glary?
Glary Utilities is a software 'utility', bundling perhaps ten, or more, individual 'fix-it's' to improve your computer's performance - make it run like new! It will "Optimize And Improve", fix your "Privacy And Security", attend to your "Files And Folders", get your "System Tools" in order, and finally "Clean Up And Repair". Each of these "fixes" has several more sub-options and "fixes". There is a "Lite" or free version (which is perhaps missing some key attractions), and of course for a charge the "Pro" or full version.
The problem I have with Glary, and most all others of its kind, is (A.) the efficacy of all these "fixers", and (B.) putting tools, so very invasive, in the hands of those who really don't have much experience. Many savvy techs will advise you to leave your computer's registry, ALONE. The registry is rather like your computer's 'central filing cabinet' or 'brain' if you will. It controls the main settings for what your computer is instructed to do, and how. If you jiggle the registry the wrong way, and change, or remove, key registry commands, you could truly cripple your system, or lose it. The only fix then is a reinstall of your OS.
So riddle me this: how safe/smart is it to give a trusting, but unfamiliar user, a terribly invasive program designed to DELETE "unnecessary" registry entries? The stories I could tell (including my own DISASTER tales of registry fixers).
OK, so much for the registry. But the same dynamic of RISK applies to all the other 'jobs' the utility is ready to do for you. What WILL it do to your security, and along with optimization, what will it "Improve? Files And Folders, "corrects the errors in your start menu and desktop shortcuts". Do you know which shortcuts you want to keep, and which, if any, are OK to delete? So how does Glary?
So what is safe? Ask lot of good questions of smart computer people. Trouble is they're not always handy and generally cost a good deal to hire.
I turn to the web sites I can trust for feedback. Trust - takes time to build trust. Here's a starter for you. Lifehackers.com is a well known resource with techs and smart computer people. They have a long history of good advice and fixes that have been around a while, work, and don't break anything. You'll learn a good deal there and also find resources for freeware fixes and options you can trust.
There are more web sites you can turn to but the process is not a quick one. Before a wizened user does a thing, they'll drop into forums and ask the "elders", "any thoughts"? Mostly the feedback will be usable and safe. Unfortunately PATIENCE is the best "fix" you can use.
Almost done. Here's a freeware program you can start with and get to know well. Ccleaner.com (originally known as Crap Cleaner) is one of the handiest tools around. It will clear out all your temp, garbage files (but you STILL have to know WHICH areas to tell it to clean), disable unnecessary items from start-up, even uninstall stubborn unwanted programs. It's also one of the few intelligent registry fixers - period. You can scan your registry without changes, backup existing registry before any cleaning (if you screw-up - UNDO the clean), and for some reasons I'm unaware of, makes better decisions about your registry than most other progs.
There. I've had my say. Be careful of promises that seem, "to good to be true", they generally are. Research and patience will keep your computer running longer, better, with a lot less grief.