Installation sequence:
1. Install Windows XP on partition 0
2. Prepare second primary partition for second Windows xp (encrypted)
3. Install DiskCryptor ond Unencrypted Windows XP
4. Install second Windows XP on partition 1
Remember, disk speed is decreasing from begin to the end (opposing way in optic disks). You have to decide with operating system you will use more often, encrypted or not? If you use encrypted system often, then encrypt the first partition, you will gain some speed. (10-20%) depending on HDD characteristic.
5. Log in to windows on "partition 0"
6. In control panel, administrator tools, disk manager, set partition 1 as active. [From now on, do NOT restart your windows you will be unable to start any OS]
7. Encrypt your Windows on "partition 0".
8. Set booting options.
Main TAB - Booting method - specified partition - Volume C
Authentication TAB - "Password or Password+KeyFile", Password prompt message: "unchecked", Show entered password: "Hide entered password", Authentication time out set ae. 15second.
Invalid Password TAB - Use incorrect action if no password entered, Invalid password message: "unchecked", Invalid password action: Boot from active partition.
9. Restart.
It work's on DC boot manager, not windows boot manager. After uoy logo in to your encrypted widows you can edit boot.ini and remove second OS.
If you won to log in to encrypted widows enter password, if you (or someone else) don't provide password, unencrypted system start automaticly.
P.S.
If you are not familiar with DC and to see, when DC will wait for password, you can set options:
Authentication TAB like that: "Password or Password+KeyFile", Password prompt message: "checked", Show entered password: "Show asterisks", Authentication time out set ae. 15second.
De