Service 'Sdl.TranslationStudio.Api.ProjectManagement.IProjectManagementService' could not be started

Question

I'm using Trados Studio 2019. I hadn't been using it much lately, but on October 31st, I received a translation request that required Trados Studio. I continued working on that job alongside other tasks.
However, around 4:30 PM on November 13th, I suddenly couldn't launch Trados Studio anymore. The error message shown above appeared.
I tried various recovery methods while consulting with a support representative named Ana-Maria, but I was unable to restore it.
For now, I've handed over the work in its current state to someone else, so I probably won't need to use Trados Studio for the time being. However, it's problematic that it remains unusable, so I request support to restore it.

Removed AI Suggestion
[edited by: Akihiro Kuwai at 5:33 AM (GMT 0) on 14 Nov 2025]

RWS Community AI · Accepted Answer

Probability score: 0.7 
 Question improvement suggestion: Provide specific details about the recovery methods you attempted and any error messages received during those attempts. This will help in diagnosing the issue more effectively. 
 In the meantime, based on the information you have provided, here is a suggested answer to your question: 
 Hello, 
 It sounds like you're experiencing a frustrating issue with Trados Studio 2019. Here are some steps you can take to troubleshoot and potentially resolve the error message regarding the 'Sdl.TranslationStudio.Api.ProjectManagement.IProjectManagementService': 
 **Step 1:** Close Trados Studio completely. 
 **Step 2:** Navigate to the following directory: 
 `C:\Users\%username%\AppData\Roaming\SDL\SDL Trados Studio\15` 
 Make sure to enable the visibility of hidden items in Windows File Explorer by clicking on the "View" tab and checking the "Hidden items" checkbox. 
 **Step 3:** Rename the `Plugins` folder to `Plugins_old`. This will disable any third-party plugins that might be causing the issue. 
 **Step 4:** Optionally, you can run a repair installation of Trados Studio. To do this, go to Control Panel > Programs and Features, find Trados Studio, right-click on it, and select "Repair". 
 **Step 5:** Restart your computer and then try to open Trados Studio again. 
 If the issue persists, consider checking for any antivirus software that could be interfering with the application. Adding the Trados Studio installation folder as an exception in your antivirus settings can sometimes resolve such issues. 
 If none of these steps work, you may want to check for any recent Windows updates or reinstall Trados Studio as a last resort. 
 I hope this answer addressed your question. If not, please reject the answer, add the question improvement suggestion information, and click the RWS Community AI checkbox on the right to try again. 
 RWS Community AI

Anca Stoian · Answer

Akihiro Kuwai We will be pleased to help you with this problem so have logged a support case on your behalf. We do prioritise customers who have a support contract so please keep in mind it could take up to 48 hours, especially over a weekend, but rest assured we will contact you as soon as we can. You will be contacted at the email address used for this Community. Support Case Id : CS0031465.

Anca Stoian | RWS Group

Trados Studio > 1. Trados Studio

Service 'Sdl.TranslationStudio.Api.ProjectManagement.IProjectManagementService' could not be started