Crapfixer is the latest open source Windows tweaker by serial developer Belim. He calls it “the tool Microsoft would build, if they hated bloatware as much as we do”. I have reviewed several of his tools in the past, including the tweaker TidyOS, the app remover NoBloatBox and the tweaker ThisIsNot11.
The main idea behind Crapfixer is to create a simple tool that gives users control over popular tweaks. These tweaks improve privacy, remove features, or even applications that come preinstalled with the operating system.
With Crapfixer, it is as easy as it gets. Run the program with elevated rights after you have downloaded its 150 kilobyte executable. Windows may throw a SmartScreen warning, which is displayed because the app is new and relatively unknown, not because it is malicious.
The app displays all available tweaks in a sidebar on the left. Hit the analyze button to check if tweaks are already applied. You can uncheck some of the tweaks so that they are not checked by the tool.
Recommended tweaks are marked in red and you may apply them all at once with a click on the CFixer button. It is recommended that you check them first to avoid that a feature is changed or removed that you require.
As far as tweaks are concerned, you find the usual assortment of tweaks supported by the application. From disabling the “First run experience” over “showing full context menus in Windows 11” to disabling Power Throttling and Game DVR.
While the tweaker does not support as many tweaks as WinAero Tweaker, which many consider the richest when it comes to tweaking Windows, it does support major tweaks that you come to expect from an app of its kind. Even new AI tweaks, such as turning off Recall in Windows 11, are supported.
The application is easy to use and the description displayed for each tweak is sufficient in most cases. You can press F1 after selecting a tweak, or right-click and select Help, to display more information. This is usually just a sentence though and may not be enough sometimes to determine its use or usefulness.
CrapFixer features a restore button, which restores functionality. All in all, it is a good tweaker for Windows, but not that special when compared to Belim’s other tools or popular tweakers by other developers. If you have not used a tweaker yet, this could be it. Anyone else may not find much use anymore in that tool.









