OSError: [WinError 6] The handle is invalid

Hi

We are automating a large enterprise project through Selenium-Python.
We are following POM methods and for nightly execution we have created bat file and .py files in which we give module names
Since few week during nightly execution we are facing issue of [color=#4000BF:e7ny7gzq]"OSError: [WinError 6] The handle is invalid"[/color:e7ny7gzq] due to that remaining scripts for rest of the modules get failed with same issue.
We are using 64-bit m/c and VS 2015

When google for this issue.. found it is related to hardware....

If anyone have any idea... Please let me know...How to avoid this issue...by keeping m/c configuration same...

Please let me know for more information.

Regards,
Vaibhav Kate