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How to fix .NET Runtime Optimization Service high CPU usage

In certain scenartiện ích ios, some Windows processes or third-các buổi party applications can trigger high CPU usage. If you open Task Manager to kiểm tra which process is slowing down your computer, you may be surprised khổng lồ see .NET Runtime Optimization Service utilizing much of your CPU’s resources. It’s a known issue that .NET Runtime Optimization Service can randomly, but also after an update lớn .NET Framework, start utilizing an unreasonable amount of a computer’s CPU processing power. Here, we will discuss this issue và provide proven methods on how to fix this issue.

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Windows 10 consists of many services that make it & its programs work correctly. .NET Runtime Optimization Service is a component of the Windows operating system. Its executable is called mscorsvw.exe cộ, but you will typically see it in Task Manager as .NET Runtime Optimization Service.


This service aims to optimize .NET Framework, which, in turn, optimizes applications that require .NET Framework khổng lồ launch & run faster. It features native sầu image generation giải pháp công nghệ, allowing applications lớn launch quickly. Without .NET Runtime Optimization Service, your applications wouldn’t launch as fast.

While your PC is idle, .NET Runtime Optimization Service recompiles .NET assemblies in the background. Microsoft has stated that the service should run no longer than a few minutes.

Under normal conditions, .NET Runtime Optimization Service doesn’t cause high CPU usage. However, if, for some reason, the process takes longer than it should, that might cause this service to lớn utilize more CPU resources than necessary. In such an event, this service might use up lớn 100% of your CPU’s resources. You may see multiple .NET Runtime Optimization Service (mscorsvw.exe) processes when you open Task Manager.

Furthermore, this may not be limited lớn the CPU, but also RAM. Suppose .NET Runtime Optimization Service utilizes all of the available memory. In that case, your PC can slow down lớn a crawl & become unusable.

.NET Runtime Optimization Service was configured lớn run in the background always. When it detects your PC is idle, it starts recompiling framework libraries. It is said that the recompiling process takes between 5-10 minutes. The problem many users have sầu experienced is that .NET Runtime Optimization Service runs the optimization process for too long và consumes a large percentage of a CPU’s resources when it runs. Some users have reported that NET Runtime Optimization Service would stay lượt thích that for days & even weeks without ever completing its processes.

There are a few less likely reasons for why .NET Runtime Optimization Service causes high CPU utilization. First, the optimization process runs too slow, taking more than the usual 5-10 minutes to lớn complete its task. Second, the service might have sầu been corrupted và needs to lớn be restarted. Third, .NET Runtime Optimization Service might have sầu been infected by malware. Alternatively, your PC might have been infected with malware disguised as .NET Runtime Optimization Service.

Before you attempt to lớn tackle the issue of .NET Runtime Optimization Service hogging your CPU’s resources, you should install anti-malware software và scan your computer for threats that may have sầu been disguised as this service. We don’t recommover disabling .NET Runtime Optimization Service permanently as it’s vital to lớn launching applications on your PC much faster.

Nevertheless, you can temporarily terminate the service via Task Manager. Doing so will temporarily turn off the service, but it will come bachồng later when your PC is idle again.

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Method 1. Optimize NET Runtime Optimization Service

1. Hold down Windows+R keys khổng lồ open Run.


2. Type CMD and hold down Shift+Ctrl+Enter keys khổng lồ open Command prompt with administrative sầu privileges.


3. Type in the cd c:WindowsMicrosoft.NETFramework64v4.0.30319 commvà in the Commvà prompt and hit Enter.

Note: If you’re running the 32-bit version of Windows type in cd c:WindowsMicrosoft.NETFrameworkv4.0.30319 instead and hit Enter.


4. Then, type in ngene.exe cộ executequeueditems & hit Enter.

Method 2. Run the .Net Runtime Optimization tốc độ up script


1. Go lớn Microsoft"s GitHub page khổng lồ tải về the official script.


2. Right-click the Raw button và select Save links as.


3. Make sure that the Save as type is Windows Script file & clichồng Save to download DrainNGenQueue on your PC.


4. Then, open the script file, và the Commvà prompt will execute the script and close automatically.