FairUse4WM once was a "famous", free DRM removal for Windows to strip the DRM from any PlaysForSure file, whether you've purchased or just rented the song. It works only on Windows Media DRM 10 and DRM 11 (aka, PlaysForSure).
Though it stands that, "this program is ONLY designed and intended to enable fair-use rights to PURCHASED media," Microsoft sent anti-FairUse4WM takedown notices to people who host copies of FairUse4WM.
I don't know if there are still any people using FairUse4WM today after 11 years of the release of this software. But I guess that many people may still want to remove DRM protection from Windows Media files. There are many portable music playback devices that support the Windows Media format but not Microsoft's PlaysForSure DRM scheme. So even if you are a paying customer, your music won't work on many of those devices and it can be a frustrating experience for consumers.
However, FairUse4WM doesn't work in Windows 7/8/10.
So is there any alternative to FairUse4WM for Windows 7/10 that can remove WM DRM legally?
The answer is positive. The best alternative of FairUse4WM is called DRM Media Converter.
Comparison: Why DRM Media Converter a Good Alternative to FairUse4WM for Windows 7/10
DRM Media Converter
Supported Windows OS:
Windows XP, Windows Vista
Remove WM DRM:
Convert DRM WM Files:
NO. just makes fair-use backups
Yes. Convert Windows Media files (.wmv, .asf, .wma) to MP4, MOV, M4V, AVI, WEBM, etc.
1). It can legally bypass digital copyright protection from M4V, WMV and ASF video downloaded or purchased from iTunes, Windows Media Centre, Zune Marketplace, BBC iPlayer, Xbox Live Store, Amazon Instant Video, etc.
2). Remove DRM protection from AA, AAX, M4P, M4B and WMV audio files.
1). Only cracks DRM one song at a time
It removes DRM by recording the videos you are playing.
As the table shown, aside from removing DRM from Windows media files, DRM Media Converter can also remove DRM from iTunes videos and audiobooks. Most importantly, DRM Media Converter works well on Windows 7, Windows 8 and Windows 10.
How to Remove WM DRM in Windows 7/10 with FairUse4WM Alternative
There are two ways to import files into the program, (1) Click the “Add” button at the top left to browse your computer's folders and select the file(s) you want or (2) just drag-and-drop the Windows media files you want directly from your desktop into the main window
Choose an output format from "Audio files to" or "Video files to". Click the Settings button to open the Settings dialog box for detailed settings of the output format.
Once you've finished all the settings, click "Start" button to begin the process. After that, you can click the "Find Target" button to open the output folder and find the converted files. They are DRM-free now.
Learn More: Windows Media DRM & PlayReady DRM
Windows Media DRM (WM DRM) is a Digital Rights Management service for the Windows Media Platform. It's used to manage multimedia files in a way that the distributor can control how that content is used. The content delivered with the WM DRM encryption is not universally accessible but limited to those users running Microsoft Windows.
Windows Media DRM was removed in Windows 10 Anniversary Update in favor of Microsoft PlayReady.
PlayReady is a media file copy prevention technology from Microsoft that includes encryption, output prevention, and digital rights management (DRM). It was announced in February 2007. PlayReady competes with other proprietary DRM schemes and even more with DRM-free software, most notably Apple's FairPlay introduced in iTunes and QuickTime.