Double clicking doesn't open a package/file in SDL Trados Studio 2021

Question

Hello, 
 I recently upgraded to SDL Trados Studio 2021, and since I did the upgrade, I can't double click a project or file to open it in Studio. When I double click, it opens a new Studio window (even if Studio is already launched), and does nothing else. No file, project or prompts show up. I have tried this with .sdlproj/.sdlppx/.sdlxliff files and I always get the same result: an newly opened and empty Studio window. 
 I can still click Open File/Open Project/Open Package from the Studio window, but it's just not as efficient as simply double clicking a file. 
 Did I miss something? Would anyone happen to know a fix for this problem? 
 Thank you, 
 Caroline

Alison Field · Answer

Hi Caroline Loubert-Arseneau 
 The first thing to try when a problem occurs after an update is a Windows Repair of Studio (and maybe MultiTerm) . 
 Here is how: 
 
 Close all SDL applications. 
 Open the Control Panel :
 
 Windows Vista/7 : Start > Control Panel > Programs > Programs and Features . 
 Windows 8 : Right-click on the screen at bottom-left corner and choose Control Panel > Uninstall a Program . 
 Windows 10 : Right-click on Start > Control Panel > Select View by: Small Icons > Programs and Features 
 - or type 'Control Panel' in the search line on your bottom Windows toolbar.

Click/highlight the relevant SDL product from the list (e.g. SDL Trados Studio 2021 etc) and click 'Uninstall/Change' either on the top toolbar or on the right-click dropdown menu, then select > Yes > Repair . Allow it to run. This will take longer for Studio than for the 3 main components of MultiTerm. Do not repair either of the 'Remove suite of products' entries. These are only for uninstalling. 
 Restart Studio/MultiTerm.

If this doesn't solve the issue, take a look here: 
 Repairing your installation of SDL Trados Studio 
 The process I've described above is the first step in the above link. There are further steps you can take. 
 If the various steps don't help or you don't have the knowledge to follow them, go to the bottom of the page and you'll see a link where, if you don't have a support contract, you can fill out your details to get free help within a day or two. 
 Let me know if none of the above works for you... 
 All the best, 
 Ali

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Double clicking doesn't open a package/file in SDL Trados Studio 2021