SystemDrive Environment Variable Disappears

ID: Q125859

The information in this article applies to:

Microsoft Windows NT Workstation version 3.5
Microsoft Windows NT Server version 3.5

SYMPTOMS

When you start Windows NT, a system variable called SystemDrive is created. This environment variable may removed before you log off. Batch files that depend on the SystemDrive variable fail.

CAUSE

When you run Control Panel, choose System, and change anything, the environment is regenerated without the SystemDrive environment variable.

STATUS

Microsoft has confirmed this to be a problem in Windows NT version 3.5. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.

Additional query words: environment variables prodnt system drive applet

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