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What is the CNG Key Isolation (KeyIso) service?

What does the CNG Key Isolation (KeyIso) service do?

The CNG (Cryptographic Next Generation) key isolation service is responsible for storing the keys for cryptographic information in a secure place. For example; the CNG service would store a wireless network’s key, or cryptographic information for a smart card.

CNG Key Isolation (KeyIso) service details

Does my computer need the CNG Key Isolation (KeyIso) service?

Yes your computer needs this service to stop cryptographic information securely.

Should I disable the CNG Key Isolation (KeyIso) service?

First off, I have to say that it’s best to leave service optimization up to Microsoft. With that said; leave this service alone and let Windows determine if it should run or not.