My Ms Project always takes me to a repair dialogue.

Question

My Ms Project always takes me to a repair dialogue.

sibusiso maseko 0

My MS Project does not want work. It always ask for a safe log in and repair setting.

Chris Duong 10,705 Reputation points Microsoft External Staff Moderator

2026-05-10T16:58:46.1233333+00:00

Hi @sibusiso maseko,

I hope everything is going well on your end.

I’m following up on the support thread we've been working through together. I wanted to check in and see if the information I shared in my previous answer helped resolve the issue you were experiencing.

If you're still experiencing any issues or have further questions, please feel free to reach out at any time. I’m always happy to help if you need anything else.

I want to ensure everything is functioning smoothly and that your experience remains seamless.

Thank you again for your collaboration throughout the troubleshooting process.

I look forward to hearing from you soon.

2 answers

Your answer

Chris Duong 10,705 Reputation points Microsoft External Staff Moderator

2026-05-10T16:58:46.1233333+00:00

Hi @sibusiso maseko,

I hope everything is going well on your end.

I’m following up on the support thread we've been working through together. I wanted to check in and see if the information I shared in my previous answer helped resolve the issue you were experiencing.

If you're still experiencing any issues or have further questions, please feel free to reach out at any time. I’m always happy to help if you need anything else.

I want to ensure everything is functioning smoothly and that your experience remains seamless.

Thank you again for your collaboration throughout the troubleshooting process.

I look forward to hearing from you soon.

Answer 1

Hi @sibusiso maseko,

I hope you’re having a great day.

Thank you for reaching out, and I really appreciate you taking the time to share the details of the issue.

From your description, it sounds like Microsoft Project is repeatedly starting in Office Safe Mode (a diagnostic mode that loads the app with limited features) and/or prompting Repair because the application may have encountered a startup failure or a component conflict.

Here are some workaround steps you can try:

1/ Confirm Windows is not in Windows Safe Mode

Office apps may fail or behave unexpectedly if Windows itself is running in Safe Mode. If your PC is in Windows Safe Mode, restart normally (or use Selective Startup for troubleshooting) and try launching Project again.

More info here: Office doesn't start when Windows runs in safe mode - Microsoft 365 Apps | Microsoft Learn

2/ Launch Project in Office Safe Mode (for diagnosis)

Safe Mode starts the app without add-ins/customizations and helps identify whether an add-in or customization is causing the startup issue.

Please close Project completely
Press Windows + R > type: winproj /safe > Enter
(Alternatively, hold CTRL while opening the app from its shortcut.)

If Project opens in Safe Mode, the issue is often related to add-ins or custom settings. Then move to Step 3.

3/ Disable add-ins (if Safe Mode works)

Safe Mode disables add-ins; if the app works there, a conflicting add-in is a common cause.

Open Project > File > Options > Add-ins
Under “Manage”, choose COM Add-ins > Go…
Uncheck all add-ins > OK
Restart Project normally
Then, re-enable add-ins one by one to identify which one triggers the issue.

4/ Run Office/Project Repair

If the issue continues (or Project won’t open even in Safe Mode), please run a repair:

Windows Settings > Apps > Installed apps/Apps & features
Select Microsoft 365/Office (or standalone Project if applicable) > Modify
Run Quick Repair first; if not resolved, run Online Repair (more thorough).

Additional guidance: Repair an Office application - Microsoft Support

Also, if Project always opens in Safe Mode, the shortcut may include a “/safe” switch. Office apps support command-line switches like /safe which will force Safe Mode at startup.

Right-click the Project shortcut > Properties
In Target, check if it ends with /safe and remove it if present.

5/ Contact Support

If the issue persists, you may choose one of the options below depending on your license to contact support:

Option A - If you’re using an organization-managed license
(Project included with Microsoft 365 / Project Online Desktop Client / Project installed by your company)
I recommend reach out to your organization’s IT admin to verify your license assignment, add-ins policies, and installation health. Business support requests typically need to be submitted by a IT admin via the Microsoft Admin Center (Help & support > Contact Support).

In case you do not know who is your IT admin, kindly refer to this article: How do I find my Microsoft 365 admin? - Microsoft Support

Option B - If you’re using a personal/standalone (non-org) license
(Project standalone/perpetual purchased for personal use and tied to a personal Microsoft account)

Please visit Contact - Microsoft Support to reach Microsoft Support directly.
Enter Office or your issue in general in the box below "We're here for you" then click "Get Help"
Scroll down and click on Contact Support then log in to your personal Microsoft account

As community moderators, we appreciate your understanding that we do not have access to the administrative tools or permissions required to investigate or modify these configurations. We also do not have the capability to initiate remote sessions for direct assistance. Our role is to guide users to the appropriate resources and support channels.

I hope this information is helpful. Should you have any further questions or need additional assistance, feel free to reach out.

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Answer 2

The repeated “safe mode / repair” prompts usually indicate either a damaged Office/Project installation or a problematic add‑in.

Try these steps in order:

Start Project in Safe Mode
1. Select the Search icon in Windows and open the Run app.
2. Type winproj /safe (same pattern as excel /safe or winword /safe) and press Enter.
3. Confirm that the Project title bar shows “(Safe Mode)”.
- If Project does not start in Safe Mode, skip to step 3 (repair Office/Project).
- If Project starts in Safe Mode, continue with step 2.
Disable add-ins
1. With Project still in Safe Mode, go to File > Options > Add‑Ins.
2. In the Manage list at the bottom, choose an add‑ins type (for example COM Add‑ins) and select Go.
3. Clear the check box for one add‑in and select OK.
4. Close Project, then start it normally (not in Safe Mode).
  - If Project opens normally, the last add‑in cleared is causing the problem. Leave it disabled or remove it, or check the vendor’s site for an updated version.
  - If Project still fails, repeat the process and disable the next add‑in, testing each time.
5. If all add‑ins are disabled and Project still fails, the issue is not add‑ins; proceed to step 3.
Run an Online Repair of Office/Project A full Online Repair is more thorough than the quick “Repair now” dialog and is recommended when apps keep asking to repair.
1. Close all Office apps, including Project.
2. Open Settings > Apps > Apps & features (or Programs and Features in Control Panel, depending on Windows version).
3. Select Microsoft 365 or Office/Project in the list and choose Modify.
4. Choose Online Repair (not just Quick Repair) and follow the prompts.
5. When the repair completes, restart Windows and try opening Project again.

If the problem persists even after Online Repair and add‑ins are disabled, a full uninstall of Office/Project followed by reinstall is typically the next step, ensuring the license is correctly attached to the Microsoft account before reinstalling.

References: