Just be aware that it does not do a very good job of cleaning up junk. Advanced System Optimizer v3 was released in late 2009 and it has not received any significant updates since then. Some other third party junk cleaners do a much better job at finding junk and its registry cleaner, has minor issues with false positives. There are much better alternatives. It's odd that it's nearly sixteen years later, they have not released any major new versions, just occasional minor updates. However some of their standalone utilities have received significant updates. For example, Systweak's various driver update tools such as Advanced Driver Updater, find a lot more driver updates than the driver updater included with ASO.
