CLR20R3 error is received when you are launching an application in Windows 10. It can happen because of two reasons, a corrupted application file or missing system components. Keep on reading in order to find solutions to fix this error.
Locate problematic application executable file
Right-click on executable
Click on properties
Go to the compatibility tab and try running the application in the previous version of Windows or as an administrator.
Right-click on Start, then left-click on command prompt (admin)
In command prompt type next command and after each line of command press ENTER
regsvr32 atl.dll
cd C:\WINDOWS\eHome
ehSched /unregServer
ehSched /service
ehRecvr /unregServer
ehRecvr /service
ehRec.exe /unregServer
ehRec.exe /regserver
ehmsas.exe /unregServer
ehmsas.exe /regserver
Go to control panel
Click on Program and Features > Turn Windows feature on or off.
Expand Media Features, uncheck Windows Media Player, and click Ok.
Restart your PC, go through the same steps, tick Windows Media Player, and restart your computer once again.
Go to control panel
Click on Program and Features > Turn Windows feature on or off.
Uncheck “.NET Framework 3.5” and “.NET Framework 4.8”, and click Ok.
Restart your computer, go through the same steps, check “.NET Framework 3.5” and “.NET Framework 4.8”, and restart your computer once again.
Go to settings and check for updates
Administrators can download updates from the Microsoft Download Center or the Windows Update Catalog to deploy to multiple computers If you are running Windows Server Update Services (WSUS) 3.0, System Center Essentials (SCE), or System Center Configuration Manager (SCCM) you can import updates directly into these applications. Security updates, critical updates, service packs, update rollups, definition updates, and critical drivers can be configured to synchronize with your server automatically. You can still import these updates into your application by using Microsoft Update Catalog; however, depending on how you configure WSUS, SCE, and SCCM, you may not need to import the updates.
sfc/scannowWhen it is done, a message will confirm that Windows found some corrupt or missing files and it has successfully repaired those. Check the Outlook and see if your emails are sending. If the problem persists, don’t worry there is another way to solve this. Users have found another command helpful is using the NetShell utility from the command prompt, which is similar to the above solution.
netshwinsosk resetThis helpful command will reset the network adapter to its default settings. Hope this will solve your problem. If not, you may want to try the Method 2 listed below.
“Windows could not start the service on Local Computer. Error 1083: The executable program that this service is configured to run in does not implement the service.”To fix this error, you have to add the service name in the respective host in the Registry Editor, and to do that, here are some steps you need to take on. Step 1: The first thing you have to do is to take note of the service name that’s given in the error message. For instance, you get the “Windows Management Service. Step 2: Next, you need to open the Services Manager by tapping the Win + R keys and typing “services.msc” in the Run dialog box, and then tapping Enter. Step 3: After opening the Services Manager, look for the Windows Management Service and once you see it, double click on it. This will open a new mini window. Step 4: From the newly opened window, copy the Service name and the Path to executable under the General tab. If the path to the executable is displayed as “C:/Windows/system32/svchost.exe -k netsvcs –p”, you need the “netsvcs” part only. Note that it can be different for different services and you need the part that comes after “-k”. Step 5: Now tap the Win + R keys again to open Run utility and type “Regedit” in the field and click OK to open the Registry Editor. Step 6: After that, navigate to the following registry path:
ComputerHKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionSvchostStep 7: From the given registry path, look for a key named “REG_MULTI_SZ” located on your right-hand side. This key is named after the “Path to executable” part. For instance, you should see “netsvcs”. Step 8: Double click on the REG_MULTI_SZ key and enter the Service name that you’ve copied earlier and then write it down at the end of the preset list. Step 9: Now save the changes you’ve made and try to open the program or run the service again.