This archive contains TrueCrypt 4.1 setup and documentation. IMPORTANT -- PLEASE READ ======================== 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. 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 the older version first, 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 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 with 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 will need Adobe Acrobat 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. 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 =================== http://www.truecrypt.org