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BCUninstaller (or "Bulk Crap Uninstaller") is a free program uninstaller. It is focused on removing large amounts of applications in a small amount of time. It can clean up leftovers, uninstall applications according to premade lists, and much more!

Most notable features:
Available in English, Polish and French language, more to come (contact me if you are willing to translate BCU to your language)
Uninstall any number of programs at once
Quiet (unattended) uninstall of many programs, even if they don't explicitly support it
Intelligent ordering of uninstallers in large tasks
Detection and clean up of leftovers after uninstalling applications
Uninstall lists (automatically select uninstallers from the list, can be edited in a text editor)
Advanced grouping, sorting, filtering and searching
Can run custom command before and after uninstallation
Editing tools and backup creation - can generate .reg files and remove junk to recycle bin
Visibility of protected and invalid entries (system uninstaller doesn't see them)
Fully portable, requires Net 3.5 which is installed on all Windows 7 machines
Automatic error reporting and updating
And a bunch more features I forgot to write down...

2.8
Added ability to detect apps without uninstallers
Added tool to clean up "Program Files" folders
Added Windows Feature detection
Added a color legend to the list view
Added hotkeys to the main window
Added ability to open items in the junk remove window
Added some of the new features to the first run wizard
Upgraded uninstall lists
Many changes and fixes, check the full change log

Most important changes in version 2.9
Added detection of programs running on startup
Added detection of running applications
Added custom Program Files directories
Improved detection of orphaned applications
Remade search box to use compare methods
Added new compare method - Contains Any
Added button to show more settings to the setup wizard
Changed look of the interface, added new icons

Version 2.9.2 Changelog
Improved certificate detection
Fixed BCU showing in the Process kill window
Fixed Windows Features being filtered away
Fixed a Dispose crash on exit
Fixed a crash when searching for junk
Fixed a crash in icon getter
Fixed a crash on startup with some antiviruses
Fixed a crash when getting MSI certificates
Version 2.9.1 Changelog
Added ability to disable startup entries
Added move link startups to registry
Added change startup between all and current user
Added icons to startup manager
Added menu option to disable autostart in main window
Fixed some startup items not being detected
Fixed regex search crash
Fixed errors in Polish translation
Fixed crashes when running from read-only drive
Fixed "process exited" during uninstall
Fixed crash during startup

Version 2.12 Changelog
Added running process check to junk remove
Added option to automatically load Uninstall List on application start
Improved detection rate of leftovers
Improved Program Files clean-up
Changed running process check to not kill child processes
Fixed running process check not showing some processes
Fixed feedback form

Updated libraries to latest versions
Fixed occasional error when startup directory is missing
Fixed crashes/bugs when loading startup entries
Fixed crash when reading disabled startup items on W7 and below
Fixed task exceptions when populating lists
Fixed crash while accessing task scheduler on XP
Fixed uninstall progress window staying disabled after trying to skip
Fixed double list refresh after junk removal

3.6
This release focuses on improving junk detection and manual uninstall.

Added dialog to close running apps during junk removal.
Added detection of Windows Error Reporting junk.
Added detection of HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing junk.
Added detection of \FirewallPolicy\FirewallRules junk.
Added extra confidence to directories that will be empty after removing junk.
Added option to still show leftover list if all items have low confidence.
Added "Task" in front of task junk paths.
Added a new feedback box.
Improved matching of junk to product names.
Improved detection of registry junk.
Fixed junk search not scanning some subdirectories.
Fixed names of some apps being set to empty.
Fixed crash on invalid disabled registry startup entries.
Fixed nullref when opening a registry key fails
Fixed custom application install paths not working if surrounded with quotes

Bulk Crap Uninstaller v3.6.2


Changelog:

Added ability to sort the uninstall progress list view by columns.
Fixed crashes during bulk uninstall not being handled properly.
Fixed uninstall progress sometimes failing to update properly.
Fixed some uninstaller commands not being recognized.
Code cleanup and refactoring, small performance improvements.