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CryptDisk is an encrypted virtual disk system for Windows. I wrote CryptDisk to replace TrueCrypt and if you are currently using TrueCrypt you might want to give CryptDisk a try.
I used TrueCrypt extensively for several years, and the design of CryptDisk reflects this, keeping the things I liked about TrueCrypt, fixing what I didn't, and adding what was missing. Perhaps the best improvement is fast cloning, which can transfer a 300GB volume in about 45 seconds.
100% of the code in CryptDisk is either my original invention or public domain. It is unencumbered by any patents or sketchy origins. Work on TrueCrypt stopped in 2014 and will never be restarted. CryptDisk is being actively maintained, and I am open to new feature requests.
It runs on all versions of Windows from Vista through Windows 11 24H2, and with Secure Boot enabled.
I have been using CryptDisk every day since January 2018 and I am confident enough to keep all my personal data on CryptDisk volumes. It is provided as a perma-beta release.