Daniel Radice 

Always worth trying a reset.  You didn't share the error stack which might give an indication what is causing it... sometimes a plugin that didn't load properly... but a reset may well do the trick.

To do this just close Trados Studio and then rename this folder:

c:\Users\%username%\AppData\Roaming\Trados\Trados Studio\Studio17\

to

c:\Users\%username%\AppData\Roaming\Trados\Trados Studio\Studio17_old\

Also this:

c:\Users\%username%\AppData\Roaming\Trados\Trados Studio\17\

to

c:\Users\%username%\AppData\Roaming\Trados\Trados Studio\17_old\

Then restart Trados Studio and see if that helped.

Thanks for your quick reply Paul! I've located the problem with an updated version of a translation agency's own MTPlugin, so I'd like to try uninstalling and reintalling that. For some reason, however, the Plugin Management app (In the Program Files (x86)/SDL folder) doesn't give me the option of listing the apps for Studio 2022, only for 2021, so I can't uninstall it there. Is there some other way to remove it?

Thanks for your quick reply Paul! I've located the problem with an updated version of a translation agency's own MTPlugin, so I'd like to try uninstalling and reintalling that. For some reason, however, the Plugin Management app (In the Program Files (x86)/SDL folder) doesn't give me the option of listing the apps for Studio 2022, only for 2021, so I can't uninstall it there. Is there some other way to remove it?

Daniel Radice 

Sure... the plugins are in here:

%username%\AppData\Roaming\Trados\Trados Studio\17\

Delete the plugin from the packages folder and the related folder in the unpacked folder.  If it helps, for a thorough cleanup, I use this small script saved in a file with a .cmd extension, to clean all the plugin locations completely.  This will remove every plugin installed, but it's so easy to put them back via the integrated appstore I think it's a useful approach to make sure you only have supported apps installed and is worth using before every upgrade:

@echo off

REM cd /d "folderpath" changes the current directory to the specified path. 
REM The /d switch is used to change the current drive in addition to changing the current directory for a drive.
REM del /q /s *.* deletes all files in the current directory and all subdirectories. 
REM The /q switch enables quiet mode (doesn't ask for delete confirmation).
REM The /s switch includes files in all subdirectories.
REM This script will delete all files and folders in the specified directories 

REM Set the paths of the folders to be cleared
SET "ROAMING=c:\Users\%username%\AppData\Roaming\Trados\Trados Studio\17\Plugins"
SET "LOCAL=c:\Users\%username%\AppData\Local\Trados\Trados Studio\17\Plugins"
SET "PROGDATA=c:\ProgramData\Trados\Trados Studio\17\Plugins"

REM Delete contents of ROAMING
echo Deleting contents of %ROAMING%
for /d %%x in ("%ROAMING%\*") do rmdir /s /q "%%x"
del /q "%ROAMING%\*"

REM Delete contents of LOCAL
echo Deleting contents of %LOCAL%
for /d %%x in ("%LOCAL%\*") do rmdir /s /q "%%x"
del /q "%LOCAL%\*"

REM Delete contents of PROGDATA
echo Deleting contents of %PROGDATA%
for /d %%x in ("%PROGDATA%\*") do rmdir /s /q "%%x"
del /q "%PROGDATA%\*"

echo Done.
pause