Spybot - Search & Destroy 1.6.2
Spybot - Search & Destroy can detect and remove a multitude of adware files and modules from your computer. Spybot also can clean program and Web-usage tracks from your system, which is especially useful if you share your computer. Modules chosen for removal can be sent directly to the included file shredder, ensuring complete elimination from your system. For advanced users, it allows you to fix Registry inconsistencies related to adware and to malicious program installations. The handy online-update feature ensures that Spybot always has the most current and complete listings of adware, dialers, and other uninvited system residents.Spybot - Search & Destroy has been in the antispyware game for a long time offering features we've come to expect in the best apps in the category, but bugs and false positives make it difficult to recommend. 
The program checks your system against a comprehensive database of adware and other system invaders. It also features several interface improvements, including multiple skins for dressing up its appearance. Scan results now appear arranged by groups in a tree, and a sliding panel lets you instantly view information about a selected item to help you decide whether to kill it or not. The Immunize feature blocks a plethora of uninvited Web-borne flotsam before it reaches your computer. Other useful tools, including Secure Shredder, complement the program's basic functionality for completely destroying files. Hosts File blocks adware servers from your computer, and System Startup lets you review which apps load when you start your computer.
Unfortunately, the program has the tendency to lock up at times and even during the install process for this review, we encountered several errors. The ambitious feature list and functionality make Spybot a good choice for those in search of a second antispyware program, and recent updates have made it run faster. It still makes errors in flagging spyware that isn't, and overall there are others in the category that do a better job.
Ad-Aware Anniversary Edition
One of the first applications built to find and remove adware and spyware, Ad-Aware's excellent reputation is well-justified. The Anniversary Edition continues the publisher's tradition of adroitly addressing user concerns, but is still not quite perfect. Without a doubt, though, this version of Ad-Aware improves greatly on what has come before. It loads faster during your boot cycle. Scans take less time than before, too--the Quick Scan completed in less than 10 minutes. Although we did notice a major false positive crop up for another program's uninstaller, there were no other flaws in the scan. New users should notice that the app performs faster than integrated antivirus and antimalware programs, because only the paid version of Ad-Aware comes with an antivirus engine.
Some important features are disabled in the free version. While rootkit detection is present, heuristics and real-time registry protection are not. Ad-Aware Free cannot scan networked drives, and even a basic feature like the scheduler remains off-limits to nonpaying customers. The proprietary real-time defender Ad-Watch Live has been reconfigured to run more smoothly in the background, however, and long-time fans will notice the change.
With behavior-based threat detection and integrated real-time monitoring, Ad-Aware Anniversary Edition focuses on core consumer security needs. Instead of adding layers of bells and whistles--thereby slowing your computer and scans down--we have decided to focus on what really matters. Anniversary Edition provides advanced threat protection, and is significantly lighter and faster than our previous versions.
Numerous changes in Ad-Aware Anniversary Edition include: Behavior-based heuristical detection; Ad-Watch Live! integrated real-time protection; Customizable Profile Scans and full integration with Windows Security Center.
Interface refinements make this the easiest-to-use Ad-Aware yet. Action button placement at the bottom of the pane might feel odd to those familiar with older versions, but the forced continuity between windows is a plus.
