How to remove an mscorsvw error

The free file information forum can help you determine if mscorsvw.exe is a virus, trojan, spyware, or adware that you can remove, or a file belonging to a Windows system or an application you can trust.

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Mscorsvw.exe file information

The process known as .NET Runtime Optimization Service or Microsoft .NET Framework (version 4 Client Profile) or Microsoft Common Language Runtime Service Host belongs to software Microsoft .NET Framework (version 4 Client Profile, 4 Client, 4) or Microsoft .NET Framework NGEN by Microsoft (www.microsoft.com).

Description: The file mscorsvw.exe is located in a subfolder of C:\Windows. Known file sizes on Windows 7/XP are 66,240 bytes (27% of all occurrences), 69,632 bytes and 15 more variants.
The program is not visible. Mscorsvw.exe is digitally signed. The file is not a Windows core file. Therefore the technical security rating is 28% dangerous, however also read the users reviews.
There is a possibility to uninstall the associated program (Start > Control Panel > Add/Remove programs > Microsoft .NET Framework or Microsoft .NET Framework 4 Client Profile).

Recommended: Identify mscorsvw.exe related errors

If mscorsvw.exe is located in a subfolder of "C:\Documents and Settings", the security rating is 56% dangerous. The file size is 28,672 bytes. The process has no file description. The program is not visible. The file is not a Windows core file.

Important: Some malware camouflages itself as mscorsvw.exe, particularly when located in the c:\windows or c:\windows\system32 folder. Therefore, you should check the mscorsvw.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.

Score

User Comments

It wants to access the following IP's in this process, most owned by akamaitechnologies 63.116.244.83, 23.66.230.200, 63.156.207.59, 23.67.243.18, 69.31.38.193, 23.67.243.19, and many more - thanks to ZoneAlarm. Don't see the need for Akamai and the .NET framework, as it claims it for improving performance... Thanks MS or is it Akamai
Mike

It is a very anoying program. It stalls my computer and eats a lot of CPU time and memory. It would be much better if would be in control starting this program when I like to put my computer on idle
Henk van Kampen Netherlands

Depending on how fast your computer is, and how many programs you're running in the foreground, MSCORSVW will finish its optimizations and then close or move to a background process using virtually zero cpu cycles. It's not entirely necessary and can be disabled from running, or you can just let it do its thing and that would be the end of it once its complete. It's not dangerous at all, tho I wouldn't say its not possible for someone to mask malicious code in the process - known safe mscosvw.exe file should only be found in the .net framework folder, nested inside the Microsoft.NET folder , inside the main Windows folder, be it 32 bit or 64 bit.
Jim Bob (further information)

on older machines it can eat cpu usage/ram similarly to malware or a virus. It will go away if you leave it alone for a bit, but don't bother keeping it of you don't use the .net framework for anything. someone else posted removal steps.
OverheatedWraith

only runs for a very short time after a os update. Let it connnect to the internet to finish up whatever the security update was doing. I haven't seen it try to run/connect again.
James Cseh

It starts up with my computer and uses a lot of cpu but after a while it uses only 0% cpu. it's from the .net framework.

it about framework 4 update in MS ..I think so as well. OS win7 not need NET 4 at all.. never install NET 4 before and the above process don's show up
jason tram2

Well, I turned on my computer this morning, and upated Windows 7 SP1 Ultimate (x64) like I do everyother day, and lots of .NET updates were installed. I rebooted and now 1 whole core of my dual-core Pentium D is constantly taken up. My PC can easily handle Skyrim normally, but now even games like World Of Warcraft lag. I have never encountered this on any Windows machine, and i fix them daily.
PwnHkr

More comments can be found here:
(further information)

Summary: Average user rating of mscorsvw.exe: based on 58 votes with 9 reviews.

26 users think mscorsvw.exe is essential for Windows or an installed application. 10 users think it's probably harmless. 11 users think it's neither essential nor dangerous. 8 users suspect danger. 3 users think mscorsvw.exe is dangerous and recommend removing it. 8 users doesn't grade mscorsvw.exe ("not sure about it").

Mscorsvw scanner

Security Task Manager shows all running Windows tasks including embedded hidden functions (e.g. keyboard or browser monitoring, autostart entry). A unique security risk rating indicates the likelihood of the process being potential spyware, malware, keylogger or a Trojan.

Spyware Doctor detects and removes sleeping spyware, adware, trojans, keyloggers, malware and tracking threats from your hard disk. Ideal supplement to Security Task Manager.

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