What should I do if win7 does not have appropriate permissions to access files?

The solution to the problem that win7 does not have appropriate permissions to access files: First, click [Advanced - Environment Variables] in the properties; then change the variable name [path] and change the variable value to [C:\Program Files\NVIDIA Corporation\PhysX\Common;].

Solution to the problem that win7 does not have appropriate permissions to access files:

1. Right-click on "My Computer" , click "Properties".

#2. Then in the "System Properties" pop-up box, click "Advanced", and then click "Environment Variables".

3. In the "Environment Variables" that pops up, see "ComSpec" in the "System Variables" below, double-click it, and change the variable value to %SystemRoot% \system32\cmd.exe

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