errors AutoCAD LT 2012 and Windows 7 64 bit unable to install

[onfieldhelpdesk]

i am having a lot of trouble installing Auto Cad LT 2012 on a 64bit windows 7 enterprise laptop. below is the log file . it contains something about DirectX Runtime Failed  and some other failures. please advice. i have also attached the full log file.

=== Setup started on USIND1N9278 by noelant ===
2012/12/12:11:55:28 noelant USIND1N9278 Launch
2012/12/12:11:56:29 noelant USIND1N9278 PageOpen LaunchDialog
2012/12/12:11:56:37 noelant USIND1N9278 PageOpen LicenseDialog
2012/12/12:11:56:40 noelant USIND1N9278 PageOpen ProductInfoDialog
2012/12/12:11:57:07 noelant USIND1N9278 PageOpen ProductSelectionDialog2
2012/12/12:11:57:10 noelant USIND1N9278 PageOpen FullProgressDialog
2012/12/12:11:57:10 noelant USIND1N9278 Installing DirectX Runtime: D:\3rdParty\DirectX\DXSETUP.exe /silent
2012/12/12:11:57:45 noelant USIND1N9278 Install DirectX Runtime Succeeded
2012/12/12:11:57:46 noelant USIND1N9278 Installing Autodesk Material Library 2012: ADSK_EULA_STATUS=#1 ADSK_SOURCE_ROOT="D:\" FILESINUSETEXT="" REBOOT=ReallySuppress ADSK_SETUP_EXE=1 TRANSFORMS="C:\Users\noelant\AppData\Local\Temp\_AID50A.tmp\Media.mst"

2012/12/12:11:57:46 noelant USIND1N9278 Install Autodesk Material Library 2012 Failed Installation aborted, Result=1625
2012/12/12:11:57:46 noelant USIND1N9278 Rollback DirectX Runtime Failed Failure is ignored, Result=1619

[pendean]

Error code 1625 usually means your Windows log-in does not have sufficient rights for the install.
Error code 1619 is more generic but system related as well.
Did you remember to turn off UAC and your anti-virus software?
You can also search the installation forum for more tips: http://forums.autodesk.com/t5/Installation-Licensing/bd-p/24

[TravisNave]

Dean is right.  1625 is a failure due to system policy restrictions.  Either you don't have sufficient privileges, or your domain rights are restricted by your Administrator. 

If your IT allows, make sure you are installing with local admin rights, UAC off, and anti-virus disabled.