How do i disable truecrypt bootloader

TrueCrypt is a discontinued source-available freeware utility used for on-the-fly encryption (OTFE). It can create a virtual encrypted disk within a file, or encrypt a partition or the whole storage device (pre-boot authentication).

Decrypting a TrueCrypt Encrypted Drive/Partition

Open TrueCrypt and right click on the partition you want decrypted. In the right click menu, select Permanently Decrypt. You are asked whether you want to permanently decrypt the selected partition/drive. Press Yes.

Whatever the reason, the fact is that TrueCrypt was once deemed to be very secure but if any future security problems are discovered, nobody will fix them. Therefore, I would suggest you move to a similar or perhaps even better product that is being actively supported.

TrueCrypt 7.1a (Yes, Still)

TrueCrypt 7.1a is the last real version, released in February, 2012 and used by millions of people since then.

The advantage of TrueCrypt is that it is relatively safe by default, BitLocker is only safe after careful configuration. The disadvantage of TrueCrypt is vulnerability to keyloggers; you should consider using KeePass with Secure Desktop. The disadvantage of BitLocker are probable U.S. government bypassess/backdoors.

The development of TrueCrypt was ended in 5/2014 after Microsoft terminated support of Windows XP. Windows 8/7/Vista and later offer integrated support for encrypted disks and virtual disk images. Such integrated support is also available on other platforms […].

VeraCrypt

VeraCrypt is a fork of TrueCrypt and is widely considered its successor. … VeraCrypt uses 30 times more iterations when encrypting containers and partitions than TrueCrypt. This means it takes a bit longer for the partition to start up and containers to open, but does not affect application use.