I have a Dell D420 laptop. I want to encrypt my Windows 8.1 installation using BitLocker, however this computer appears to have a TPM installed and I do not want to use it. BitLocker keeps telling me that it will restart the computer to enable the TPM chip when I try to encrypt the drive, and seems to offer no alternatives. I tried to find information about this but I all the posts are about getting BitLocker to work when a TPM is not available, which involves just changing one entry in the Group Policy editor (which, by the way, I've tried and sadly it doesn't change anything).
Can I use BitLocker without TPM when I have one available?