Windows Server crashes unexpectedly , lsass.exe, failed with status code 255 [closed]

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My windows server crashes every few days with this error:

A critical system process, C:\Windows\system32\lsass.exe, failed with status code 255. The machine must now be restarted.

the forums in MSDN are not very clear regarding how to handle this issue. I run always a administrator, through RDP.

any help will be much appreciated.

Answer 1

Here's what I'd tried if I were you, in that order:

1. Go to device manager and select your NIC card. Select properties, then power management. De-select "allow computer to turn off this device to save power". Reboot and try to reproduce.

2. Open this page, check your OS version, check your event log for the event “Source: LsaSrv Event ID: 5000”, if everything matches, install the supplied hotfix. Reboot and try to reproduce.

3. Same with this hotfix — check OS version, check your event log, apply the hotfix if it fits.

4. Set DefaultEncryptionType registry value as specified here. However please keep in mind that this one is risky, esp. if the server is a DC. Make sure you have a fresh backup, and physical access to the server.