Version Information

P
ROBLEM
:
 
 
 
When trying to encrypt the system partition/drive, during the pretest, the TrueCrypt Boot Loader 
always reports that the pre-boot authentication password I entered is incorrect (even though I'm 
sure it is correct). 
 
P
OSSIBLE 
C
AUSES
:
•
Different state of the 
Num Lock
and/or 
Caps Lock
key 

---

115 
•
Data corruption 
P
OSSIBLE 
S
OLUTION
:
 
 
 
1. When you set a pre-boot authentication password, remember whether the 
Num Lock
and 
Caps Lock
keys are on or off (depending on the manufacturer, the keys may have different 
labels, such as 
Num LK
). Note: You can change the state of each of the keys as desired 
before you set the password, but you need to remember the states. 
2. When you enter the password in the TrueCrypt Boot Loader screen, make sure the state of 
each of the keys is the same as when you set the password. 
Note: For other possible solutions to this problem, see the other sections of this chapter. 
 
 
P
ROBLEM
:
 
 
 
When the system partition/drive is encrypted, the operating system ‘freezes’ for approx. 10-60 
seconds every 5-60 minutes (100% CPU usage may co-occur). 
P
ROBABLE 
C
AUSE
:
 
 
 
A CPU and/or motherboard issue. 
P
OSSIBLE