This archive contains TrueCrypt 4.2a setup and documentation.
If you have never used TrueCrypt before, we recommend that you read the
chapter "Beginner's Tutorial" in the TrueCrypt User Guide, which can be
found in the 'Setup Files' folder.
IMPORTANT NOTES -- PLEASE READ
==============================
If you are upgrading from an older version of TrueCrypt, it is normally not
necessary to uninstall it first. However, if any errors occur during the
process of installation, please uninstall TrueCrypt, restart the operating
system, and then try to install the new version of TrueCrypt again.
To uninstall TrueCrypt, click Start Menu -> Settings -> Control Panel ->
-> Add or Remove Programs -> TrueCrypt -> Change/Remove. Note that when you
uninstall TrueCrypt, no TrueCrypt volume is removed or modified.
IMPORTANT NOTE TO USERS WHO USE VOLUMES CREATED BY TRUECRYPT 4.0 OR EARLIER:
To prevent an attack reported in November 2005, which affects plausible
deniability, we strongly recommend that you move data from your TrueCrypt
volume to a new volume created by this version. Description of the attack:
If a series of certain plaintext blocks is written to a mounted volume
(i.e., if it is correctly encrypted), it is, with a very high probability,
possible to distinguish the volume from random data. This affects volumes
created by all versions of TrueCrypt prior to 4.1, except volumes encrypted
with AES-Blowfish or AES-Blowfish-Serpent.
Even if you do not need plausible deniability, we highly recommend you to
move your data from your TrueCrypt volume (which is encrypted in CBC mode)
to a new volume created by this version (which will be encrypted in LRW
mode). LRW mode is more secure than CBC mode.
IMPORTANT NOTE TO USERS UPGRADING FROM TRUECRYPT 3.0 OR 3.0A:
Note that after you upgrade to this new version of TrueCrypt, due to a bug
in v3.0 and 3.0a, it will not be possible to mount hidden volumes created by
TrueCrypt 3.0 or 3.0a located on some removable media, e.g., some USB memory
sticks (does not apply to file-hosted containers). If that is the case,
please before upgrading to this new version, move your files to a temporary
TrueCrypt volume on a non-removable medium or to a non-hidden volume on a
removable medium, and move the data from the old hidden volume to this
temporary one. Then install this new version of TrueCrypt, create a new
hidden volume, and move your files from the temporary volume to it. Please
see the 'Version History' in the documentation for more information.
IMPORTANT NOTE TO USERS UPGRADING FROM TRUECRYPT 2.1 OR EARLIER:
TrueCrypt volumes encrypted using the IDEA encryption algorithm cannot be
mounted using this version. If you have such a volume, before upgrading,
please create a new TrueCrypt volume using a cipher other than IDEA and move
your files to this new volume.
Before using TrueCrypt, we recommend that you read the TrueCrypt User Guide,
which can be found in the 'Setup Files' folder. To view or print it, you
need Adobe Reader, which is freely available at http://www.adobe.com. Note
that the program documentation is also automatically copied to the folder to
which TrueCrypt is installed, and will be accessible via the Start menu and
the TrueCrypt user interface (press F1 or select Help -> User's Guide).
REQUIREMENTS
============
- Any of the following operating systems:
Windows XP, Windows 2000, Windows Server 2003
- Free disk space: approximately 2 MB (this does not apply if you run
TrueCrypt in 'traveller' mode).
INSTALLATION
============
To install TrueCrypt, run the file 'TrueCrypt Setup.exe'. It is not
necessary to restart the operating system after the installation finishes.
It is also possible to run 'TrueCrypt.exe' directly from the 'Setup Files'
folder without installation ('traveller' mode). However, if an older version
of TrueCrypt is currently installed on the system, it must be uninstalled
first.
WHAT IS NEW IN THIS VERSION OF TRUECRYPT
========================================
For a comprehensive list of changes, please refer to the TrueCrypt User
Guide or visit http://www.truecrypt.org/history.php
FREQUENTLY ASKED QUESTIONS
==========================
http://www.truecrypt.org/faq.php
LICENSING INFORMATION
=====================
Before installing/running/using TrueCrypt (e.g. running 'TrueCrypt.exe',
'TrueCrypt Setup.exe' or 'TrueCrypt Format.exe'), you must agree to the
license contained in the file 'License.txt' in the 'Setup Files' folder.
FURTHER INFORMATION
===================
For further information, please visit http://www.truecrypt.org
Download Driver Pack
After your driver has been downloaded, follow these simple steps to install it.
Expand the archive file (if the download file is in zip or rar format).
If the expanded file has an .exe extension, double click it and follow the installation instructions.
Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.
Find the device and model you want to update in the device list.
Double-click on it to open the Properties dialog box.
From the Properties dialog box, select the Driver tab.
Click the Update Driver button, then follow the instructions.
Very important: You must reboot your system to ensure that any driver updates have taken effect.
For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.