The operating system name was W2K in a CrashLog file

[Romulator]

If you are running Windows 8.1, then you are running Windows 8.1, the crash log more or less will always report you are on Windows 2000. 9/10 times though, the operating system you are running will not cause Amnesia to function improperly, rather only determines where your installed content is.

Did your MaterialEditor crash? If so, go to Documents/HPL2/MaterialEditor.log and post its contents here.