Provide access to the private key for the NT Authority \ Network Service account

Question

I have a third-party digital certificate, and when I try to run the following ms-dos command to provide access to the NETWORKSERVICE account, I get the following error.

winhttpcertcfg -gc LOCAL_MACHINE\MY -s "TransUnion Net Access Client" -a "Networkservice" Error: Unable to update security info for key container error = 0x5. 

What does it mean? How to allow certificate access for NT Authority\Network Service account?

Thanks in advance for your help!

For reference only, I include the following. I ran this command

 winhttpcertcfg -lc LOCAL_MACHINE\MY -s "TransUnion Net Access Client" 

Currently, access to the private key is available only to the following accounts:

• BUILT IN\Administrators
• NT AUTHORITY\System

Answer 1

I found a solution to my problem. I need to run a DOS command prompt as an administrator , and this should do it.