Error in storeUserConfig windows environment

Below is the error:

wls:/nm/formsdomain> storeUserConfig('D:\nm\nmuserconfigfile.secure','D:\nm\nmuserkeyfile.secure','true')
Currently connected to Node Manager to monitor the domain formsdomain.
Creating the key file can reduce the security of your system if it is not kept in a secured location after it is created. Do you want to create the key file? y or n  -> y
Error: Not able to write secret key file.  Check the location and priviledges of the specified file location.

Solution:
1. Set the environment by using setdomainenv before executing storeUserConfig.
2. Ensure the folders have enough permissions where the .secure files are kept. 
3. Use \\ instead of \ in storeUserconfig command for example : D:\\nm\\nmuserconfigfile.secure\\
since windows has the habit of assuming \ as a char or special symbol, like \n is referred as new line it is best to give \\ to indicate a path.