When comparing CCleaner vs Bulk Crap Uninstaller, the Slant community recommends Bulk Crap Uninstaller for most people. In the question“What are the best software uninstallers on Windows?” Bulk Crap Uninstaller is ranked 2nd while CCleaner is ranked 6th. The most important reason people chose Bulk Crap Uninstaller is:
Can uninstall automatically.
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Pros
Pro Not simply an uninstaller
CCleaner is a general Windows maintenance tool but it also has an uninstaller built-in.
Pro Keeps bundling minimal and optional
A common drawback for freeware of this quality is when they are bundled with crap-ware. This only includes Google Chrome and can be easily opted-out of.
Pro Automatic
Can uninstall automatically.
Pro Completely free and open source
Pro Detects unregisterd programs
Can detect most applications and games (also portable and not registered), cleans up leftovers.
Pro Works even on very old Windows versions
It can even run on Windows XP, obviously with reduced functionality.
Pro Supports batch uninstalls
Not many 'free' commercial uninstaller tools support batch uninstalls at all, this one does and is completely FOSS.
Pro Has a portable version
You can choose from the installer to install the portable version.
Cons
Con Uninstaller function limited
CCleaner does not clean up leftover files after an application's uninstaller has been run, nor can it handle uninstalling applications that do not have an uninstaller.
Con Can't uninstall or detect program without uninstaller
No difference to windows uninstaller. Can't uninstall program with no uninstaller and doesn't even aware of their existance.
Con Bad
Takes up too much ram and CPU, and not a good cleaner anyway.
Con Sluggish UI
When dealing with a lot of applications the UI starts to feel slow and stutters.
