However, if you're a computer novice, you might want to steer clear. Remember, Glarysoft hopes to count you among its paying customers someday.

The giveaway nets you a lifetime license for a single PC, the only caveats being that you get neither free updates nor free support. Then click Refresh and type or paste in the username and license code supplied in that email.

Once you've received your confirmation email, download, install and run the program, then click Activate Now in the lower-left corner. Among other things, it can find and remove duplicate files, clear the junk from Windows' Registry, uninstall software and check for spyware. Glary Utilities Pro promises to fix, speed up, maintain and protect your PC.

And often with good reason: sometimes they seem to do more harm than good. I mention that because, as a general rule, reviewers tend to trash system utilities. Likewise, if you read the user comments on SharewareOnSale's deal page, you'll see lots of gushing praise. For proof, look no further than, where it scored 4.5 stars (out of 5) from CNET's reviewer and a similar rating from over 260 users. What the heck is Glary Utilities? Only one of the top-rated programs in its class. Like this one: ending tomorrow, SharewareOnSale has Glary Utilities Pro 5.2 (Win) for free. Specifically, it might be time to deploy a system-optimization utility. If, on the other hand, it has grown sluggish, obstinate or maybe just a little weird, it might be time for a tune-up. How is Windows treating you these days? Good? No issues? If your computer seems to be running smoothly, then move along, nothing to see here.

Glary utilities pro lifetime license