I ahve a Dell Latitude E6500 with Windows 7 RTM installed. I went to setup the TPM using Embassy Security Center and when the computer went through a reboot, after 1-2 minutes I got the message "Windows has encountered a critical problem and will restart automatically in one minute". Looking at the Event Logs, I see this: A critical system process, C:\Windows\system32\lsass.exe, failed with status code 255. The machine must now be restarted.Preceded 8 seconds earlier with this message: Faulting application name: lsass.exe, version: 6.1.7600.16385, time stamp: 0x4a5bbf3eFaulting module name: wvauth.DLL, version: 3.3.5.6, time stamp: 0x499ae9c6Exception code: 0xc000000dLooking at other problems, I thought it might be a corrupt DLL, so I replaced the wvauth.dll with a known good version and get the same result. I can boot into safe mode and Windows runs fine. If I boot normally, I get 1-2 minutes of normal startup followed by the warning that Windows is going to restart in one minute.Following suggestions in a previous post, I disabled all non-Microsoft Services and all Startup items using msconfig.exe and the system runs normally. I then enabled all of the services and it still runs normally.In the list of startup items, I sorted by manufacturer and enabled about 1/2 of them (A-M) and the system had the restarting problem. I disabled the A-M group and enabled the N-Z group and the Embassy Security Wizard began running for about 5 minutes, but partway through configuration, I got the shutdown notification again. I'll try narrowing things down more tomorrow.Any suggestions?

Hi papringle, please understand that Microsoft provides different support services which have different service levels and support boundaries. For this process crashes issue, it is necessary to debug the related crash dump files to locate the root cause. However, debugging is out of our Forum support boundary. I'd like to recommend that you contact Microsoft Customer Support Service (CSS) for assistance, the support professionals there are better qualified to assist you. To obtain the phone numbers for specific technology request please take a look at the web site listed below:http://support.microsoft.com/default.aspx?scid=fh;EN-US;PHONENUMBERSThank you for your understanding.Sean Zhu - MSFT