Hello Misun Choi ,

The most likely cause for this is that you are either not logged on to the machine as administrator or that the Windows version is not updated.

Please ensure you are logged in as ADMIN and that your Windows version is updated.

If you are still using Windows 7 (no longer supported), you may find the following Wiki useful.

https://community.sdl.com/product-groups/translationproductivity/w/customer-experience/5126/windows7-and-sdl-trados-studio-support

To ensure your PC is fully updated please see the following helpful Wikis

https://community.sdl.com/product-groups/translationproductivity/w/customer-experience/3392/how-to-part-1-trouble-shoot-unexplained-errors-and-unwanted-behaviour-in-studio-multiterm

You can also try manually installing the .net framework

https://support.microsoft.com/en-gb/help/4503548/microsoft-net-framework-4-8-offline-installer-for-windows

Hello Misun Choi ,

The most likely cause for this is that you are either not logged on to the machine as administrator or that the Windows version is not updated.

Please ensure you are logged in as ADMIN and that your Windows version is updated.

If you are still using Windows 7 (no longer supported), you may find the following Wiki useful.

https://community.sdl.com/product-groups/translationproductivity/w/customer-experience/5126/windows7-and-sdl-trados-studio-support

To ensure your PC is fully updated please see the following helpful Wikis

https://community.sdl.com/product-groups/translationproductivity/w/customer-experience/3392/how-to-part-1-trouble-shoot-unexplained-errors-and-unwanted-behaviour-in-studio-multiterm

You can also try manually installing the .net framework

https://support.microsoft.com/en-gb/help/4503548/microsoft-net-framework-4-8-offline-installer-for-windows