About Bulk Crap Uninstaller
The story behind one of the most trusted open-source uninstall utilities on Windows — and why we built this resource.
What Is Bulk Crap Uninstaller?
Bulk Crap Uninstaller (also known as BCUninstaller or BCU) is a free, open-source program manager for Windows that does exactly what its name suggests: it removes large amounts of unwanted software from your computer, quickly and with minimal effort. Unlike the built-in Windows uninstaller, which handles programs one at a time, BCU lets you select dozens of applications and remove them all in a single batch.
The tool goes well beyond basic uninstallation. It detects orphaned programs, cleans leftover files and registry entries, handles silent and broken uninstallers, and can even force-remove software that has no uninstaller at all. With over 17,000 stars on GitHub, BCU has earned the trust of IT professionals and everyday users alike.
History and Development
Bulk Crap Uninstaller was created by Marcin Szenfeld, who develops software under the name Klocman Software. The project started as a practical response to a real problem: Windows accumulates software over time, and removing it all manually is tedious and incomplete.
First public release on SourceForge. The initial version focused on batch uninstallation with a straightforward interface built on Windows Forms.
Added detection for Steam games, Windows Store apps, and Chocolatey packages. Post-uninstall cleanup for leftover files and registry entries became a core feature.
Source code moved to GitHub. Community contributions increased. Certificate verification was introduced, color-coding programs by trust level (green for verified, blue for unverified).
Migrated to .NET 6 for better performance. Added Oculus app detection, Windows Features and Updates management, and premade list-based uninstallation for IT deployment scenarios.
Version 5.9 released. The project surpassed 17,000 GitHub stars. Active development continues with the community contributing fixes and translations.
What Makes It Different
Several uninstaller tools exist for Windows. What sets Bulk Crap Uninstaller apart is its focus on batch operations and thorough cleanup. Here is what it actually does well:
Batch Operations
Select 5, 50, or 500 programs and uninstall them all at once. Most competing tools handle one program at a time.
Deep Cleanup
After uninstallation, BCU scans for leftover files, folders, and registry entries. It catches what standard uninstallers leave behind.
Hidden App Detection
Finds programs that do not show up in Windows Add/Remove Programs, including portable apps, orphaned entries, and system components.
Certificate Verification
Color-codes applications by their digital signature status, so you can quickly spot unverified or suspicious software.
Force Removal
Handles programs with broken, missing, or crashing uninstallers. If the normal path fails, BCU can force-remove the software.
Open Source
Licensed under Apache 2.0. The full source code is available on GitHub for anyone to audit, modify, or contribute to.
The Developer
Bulk Crap Uninstaller is developed by Marcin Szenfeld under the Klocman Software label. The project is maintained primarily by Szenfeld, with contributions from the open-source community. Rather than building a company around the software, Szenfeld has kept BCU free and open for everyone.
The project is hosted on GitHub, where contributors can submit bug reports, feature requests, and pull requests. The repository has attracted over 17,300 stars and has an active issues section where users and developers discuss improvements.
BCU is released under the Apache 2.0 license, making it free for both personal and commercial use. The source code is fully available on GitHub.
Who Uses It
BCU has a broad user base. Home users rely on it for spring-cleaning their computers, removing bloatware from new machines, and getting rid of stubborn programs. IT administrators use the batch capabilities and premade lists to standardize software across office deployments.
On Reddit, BCU regularly appears in threads asking for the best uninstaller tool. Users frequently compare it to Revo Uninstaller and Geek Uninstaller, often noting that BCU handles bulk operations better than either paid alternative. TechRadar called it a tool that “puts most of its paid competitors to shame.”
The software also has a following among power users who value its advanced filtering, data export, and startup manager features. These are users who want full visibility into everything installed on their systems.
About This Website
bulkcrapuninstaller.com is an independent, fan-made informational website. We are not affiliated with, endorsed by, or connected to Klocman Software or the official Bulk Crap Uninstaller project in any way.
We created this site because we genuinely use and appreciate Bulk Crap Uninstaller, and we wanted to build a clear, accessible resource for other users. Our goal is simple: help people find accurate information about BCU, understand its features, and locate official download links.
We do not host, modify, or redistribute the software. All download links on this site point to official sources (GitHub releases, SourceForge, FossHub). We respect the developers and their intellectual property, and we encourage everyone to support the official project.
If you are looking for official developer support, bug reports, or to contribute to the project, please visit the official GitHub repository.
Get in Touch
Have questions about this website, found incorrect information, or want to suggest an improvement? Visit our Contact page and we will get back to you.
For technical support with Bulk Crap Uninstaller itself, please use the GitHub Issues page where the developer and community can assist you directly.