What is "Microsoft .NET Framework NGEN v4.0.30319_X64" in my Windows 7 service list? And how is "Microsoft .NET Framework NGEN v4.0.30319_X64" service related to mscorsvw.exe?

"Microsoft .NET Framework NGEN v4.0.30319_X64" is a Windows 7 service provided by mscorsvw.exe program file.

Detailed information on "Microsoft .NET Framework NGEN v4.0.30319_X64" service:

Service name: clr_optimization_v4.0.30319_64
Display name: Microsoft .NET Framework NGEN v4.0.30319_X64
Execution command: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\mscorsvw.exe
Dependencies: None

"Microsoft .NET Framework NGEN v4.0.30319_X64" service is provided by a program called: mscorsvw.exe:

Name: mscorsvw.exe
Location: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\mscorsvw.exe
Description: .NET Runtime Optimization Service
File version: 4.6.1099.0 built by: NETFXREL4STAGE
Size: 125064 bytes
Modified: 3/27/2017 12:29:16 AM UTC

Disabling "Microsoft .NET Framework NGEN v4.0.30319_X64" service should not cause any issues when running Windows 7 system, if you are not using .NET 4.0 applications that often.

⇒ "Microsoft .NET Framework NGEN v2.0.50727_X86 - mscorsvw.exe" Service on Windows 7

⇐ "Microsoft .NET Framework NGEN v2.0.50727_X64 - mscorsvw.exe" Service on Windows 7

⇑ Application Services on Windows 7

⇑⇑ Windows 7 Services Tutorials