Hello Gerti Hofmann

 As you have been experiencing various issues recently, I would suggest the Studio issue is because for some reason you are no longer running Studio as 'administrator'.

This could be due to other system/program updates.

Please try right clicking the Studio icon and selecting runs as administrator

Does this help?

Hi Gerti Hofmann (GertiHofmann),

As nothing is actually stored in Studio (every thing is saved to your computer), even if you cannot see the projects in the projects view you should still be able to verify that the projects are still visible in your file structure-

Something like -

Then in this case, the next step would be to reset Studio 

Rename this folder (just add _old to the end or something, it's not important what you rename it to) and restart Studio:

c:\Users\[USERNAME]\AppData\Roaming\SDL\SDL Trados Studio\14.0.0.0

Ensure first that Studio is 'whitelisted' in your AntiVirus software (simply google your particular provider on how to do this).

Hi Gerti Hofmann 

Unknown said:

2. I unpacked the project package and the folder which gets created in doing so only contains the subfolders de-DE, en-US, Packages and Reports. Presumably if the client had attached a TM, I should see it in this list?

Correct.  There would be a folder named TM.  So I think this is clear at least.

Unknown said:

1. All the filters are set to "Show all projects". Do you have any further idea?

As you save your projects elsewhere and not in the default location is there any possibility that you changed the path to these projects in windows?  If you did this Studio would no longer be able to find them and would drop them from the list in the projects view.  Can you find them in windows and then add them back in again using Open Project and select the sdlproj file for each project?

Hi Gerti Hofmann 

Unknown said:

2. I unpacked the project package and the folder which gets created in doing so only contains the subfolders de-DE, en-US, Packages and Reports. Presumably if the client had attached a TM, I should see it in this list?

Correct.  There would be a folder named TM.  So I think this is clear at least.

Unknown said:

1. All the filters are set to "Show all projects". Do you have any further idea?

As you save your projects elsewhere and not in the default location is there any possibility that you changed the path to these projects in windows?  If you did this Studio would no longer be able to find them and would drop them from the list in the projects view.  Can you find them in windows and then add them back in again using Open Project and select the sdlproj file for each project?

Unknown said:

Gerti Hofmann

2. I unpacked the project package and the folder which gets created in doing so only contains the subfolders de-DE, en-US, Packages and Reports. Presumably if the client had attached a TM, I should see it in this list?

Correct.  There would be a folder named TM.  So I think this is clear at least.

Additionally, project packages do NOT contain folder named "Packages"... But project folders do... so I suspect that client did not really send a package, but actually a project folder instead...