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How to Fix DVD Decrypter Error: Failed to Set Data for
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Fixes for Failed to Set Data for Error: Run as Administrator, Uncheck Boxes Under Registry
Among many other DVD Decrypter not ripping errors, a lot of users report that failed to set data for error will pop up every time when they load or decrypt DVD with DVD Decrypter or when they try to close the program.
Every time I exit DVD Decrypter, it says
Failed to set data for "
I hit ok and then it says
Failed to set data for 'DVDDecrypterPlayDVDMovieOnArrival'
I hit ok and then it says
Failed to set data for " (4 more times)
This occurs every time I exit the program. Anyone know why?
Sometimes Failed to set data for " error will disappear and DVD Decrypter will close after we perform several clicks on the ok button, while sometimes another error message Failed to set data for 'DVDDecrypterPlayDVDMovieOnArrival' will show up after we close Failed to set data for " error.

These errors are really annoying, but two simple tricks will keep DVD Decrypter Windows 10/8/7/Vista users from them: run DVD Decrypter as administrator and uncheck all boxes under DVD Decrypter's Registry tab.
Note: DVDDecrypter.com was shut down in 2005, dig out more programs to decrypt protected DVDs.
How to fix failed to set data for error - solution 1. run DVD Decrypter as administrator
Right click on the DVD Decrypter shortcut and then choose "Run as administrator". Then, open DVD Decrypter and then you'll find that failed to set data for error won't pop up when you close the application or do other things. However, you have to repeat it every time you start DVD Decrypter. To get rid of these errors once and for all, you need to right click on the DVD Decrypter shortcut icon, choose "Properties", click "Compatibility" tab, and then check "Run this program as administrator" option.

How to fix failed to set data for error - solution 2. uncheck all boxes under DVD Decrypter's Registry tab
Open DVD Decrypter, click "Tools", choose "Settings", select "Registry" tab, and then uncheck all the boxes under "Shell Extensions" and "File Associations". Then, you will find failed to set data for errors have disappeared.

The Final Words:
DVD Decrypter is useful in creating backups of DVD-Video structure of DVDs. It can make the copies region free and encryption free. However, it can only remove region codes, Macrovision content protection, CSS, and UOP, and cannot handle DVDs protected by new schemes. So if you have some new DVDs that need to be decrypted and copied to hard drive, you need to turn to an alternative program such as WinX DVD Ripper Platinum.
WinX DVD Ripper Platinum is an intuitive, powerful, hardware-accelerated and up-to-date program that can remove a wide range of old and new copy protections and convert DVD to MP4, AVI, WMV, MOV, ISO file, VIDEO_TS folder, iPhone, iPad, Apple TV, Android, Xbox, PS4, and more (totally 350+ output profiles). In addition to DVD disc, it also allows users to import ISO image and VIDEO_TS folder and then convert them to more popular formats. You can free download this tool to have a try.