Hi,
Since Network Store Interface service (NSI) delivers network notifications (Eg: interface addition/deleting etc) to user mode clients. So I suspect that your issue may be related to Network adapter drivers OR high memory
usage of NSI service is mostly caused by third party service or some spyware and adware.
Please follow the methods and check if it works fine.
Method 1:
I would also suggest you to download and run the latest Microsoft Safety Scanner on your computer and check if it helps:
http://www.microsoft.com/security/scanner/en-us/default.aspx
Note: Any data files that are infected may only be cleaned by deleting the file entirely, which means there is a potential for data loss.
Method 2:
Follow the steps to uninstall and reinstall the network adapter drivers and check if it works fine.
NOTE: Please make sure you download the latest updated network adapter drivers from the computer manufacturer website before you uninstall the driver.
a. Press Windows key + R
b. In the run box, type devmgmt.msc and press enter.
c. Expand Network Adapters.
d. Right click on all the Network Adapters and click on uninstall.
e. Restart the computer.
For any Windows related issues please feel free to contact us and we will be glad to help.
I really wish this would stop being marked as the answer when it never has been nor will it ever be in regards to this problem.Others in this topic as well as myself have tried everything in this post and none of it even helped let alone fixed the issue.It's
not the drivers/hardware as it happens for me personally on 2 different computers with the only common software and hardware between them being that they are both running win 7 ultimate 64bit.I even tested on a system with a fresh install of JUST windows 7
64 bit ultimate and it still happened within days of installing it.Nothing else was installed and nothing was downloaded.It wasn't even connected to the internet during the test.It's pretty clear this is an issue within the NSI service whether it be faulty
coding to which Microsoft would never admit to or something within this service's interaction with other services/parts of the OS.Either way I doubt we'll ever see anything in the way of a fix from Microsoft as they seem to want to sweep it under the rug so
to speak.Community mods etc regurgitating standard troubleshooting that anyone with any PC knowledge would try before coming here isn't really helping either.