What will you do if the troubleshooter itself falls in trouble?

Yes, you heard it right!

That will be the exact scenario when you see this message Outlook failed to launch in Safe Mode.

outlook-failed-to-launch-in-safe-mode

Do you want to start repair?

The thing is, we launch Outlook in Safe mode to troubleshoot issues with Outlook.

But when it refuses to launch in Safe mode, how to fix THAT?

click-office-updates-button

Let me show you how to do that through this fixing guide.

So, lets begin!

Why isnt Outlook Opening in Safe Mode?

click-update-now-button

Outlook might not launch in Safe mode after improper upgradation of the Office version.

Sometimes problems with the Office utility can lead to such issues.

So, check for it to solve the problem.

click-check-for-updates-button

And corrupted Outlook profile is second on the suspect list.

Sometimes damaged data files (.ost/.pst) can halt the Outlook launching process in both standard & Safe modes.

Besides these mentioned reasons, there are other reasons behind this issue.

click-the-modify-button

So, despite all the causes, lets dive into the fixing part.

Apart from this, there areseveral ways to launch Outlook in Safe moderather than using the Run dialog.

Updating to the latest version will solve the issue if there is a fault in the previous updates.

click-repair-button

you’re able to also create a new Outlook profile to avoid issues from a damaged one.

Furthermore, disable add-ins to fix this issue.

Corrupted add-ins can stop Outlook from launching in safe or regular mode.

double-click-scanpst-file-to-open

Now, lets get into those methods individually with the proper steps.

Update the Office Suite

There might be a problem with the Microsoft Office Suite.

If you have already updated the Office Suite, corrupted update files are the main reason behind this issue.

click-start-from-scanpst-outlook

So, update the Office app once again.

But this time, update to the latest version.

Suppose you have updated from Office 2013 to 2016.

click-repair-button-from-scanpst-exe-tool

To fix this issue, you must update it to the 2021 version.

Lets see how to do it.

Now, Office Suite will start looking for new updates.

click-outlook-options

Once it finds the latest update, itll automatically download & drop in the updates.

After installing the updates, have a go at launch Outlook in normal mode.

If it launches in the regular mode without any issue, it will also launch in the Safe mode.

go-to-add-ins-of-outlook

Updating the Windows will also update the Office Suite to the latest version.

To update, go toWindows parameters > Windows Updateand click theCheck for updatesbutton.

Repairing the Office will fix major issues, including Outlook not opening in Safe mode.

uncheck-all-and-click-ok

Lets take a look at the steps to repair MS Office.

This repairing process will take some time, so wait a bit.

After completing the repair process restart the PC.

click-get-add-ins-button

Then launch the Outlook app and check whether the problem still exists.

Scanpst.exe will scan for corrupted .pst files in Outlook and repair them when found.

The PST file is mainly responsible for storing mailbox data.

click-remove-button

So, anything wrong with it can trigger issues.

Let me show you how to repair the Outlook data file with scanpst.exe.

After that, hit theRepairbutton to repair the corrupted files.

go-to-control-panel-from-run

Now, launch the Outlook app first in normal mode.

If it launches successfully, then launch it in the Safe mode.

I bet it wont fail to open this time.

click-user-accounts-from-control-panel

Moreover, for some particular reasons, data files become inaccessible.

But you canfix Outlooks inaccessible data filesby applying some proper methods.

Disable Outlook Add-ins

When you open Outlook in Safe mode, it just opens without the add-ins.

click-mail-account-outlook-control-panel

But surprisingly, some add-ins might be responsible for not launching Outlook in Safe mode.

The fact is when add-ins get corrupted; they can prevent Outlook from opening in Safe mode.

After that, launch Outlook in Safe mode.

click-add-button

So, you must disable or remove all add-ins at once.

Let me show you the steps for that real quick.

Now, close Outlook and launch again in Safe mode.

click-next-button

If you might launch Outlook in normal mode, you might remove Add-ins from the store.

So, launch Outlook in the usual way and follow the below steps.

After that, the selected add-in will remove automatically.

select-office-and-office-apps-option-and-hit-next

Thats why you must create a new profile and try launching Outlook in Safe mode to solve this problem.

So, try this method by applying the following steps.

After that, launch Outlook in Safe mode and choose the newly created profile.

choose-uninstall-option-and-click-next

I bet Outlook will launch now if the corrupted profile is blocking the way.

Additionally, it’s possible for you to alsocreate a new Outlook profile with Gmailtoo.

Its the last method you must apply to fix the problem.

click-yes-and-then-next

And those corrupted files can cause trouble.

you might uninstall Microsoft Office using theMicrosoft Support and Recovery Assistanttool.

So, launch the web app and download the tool from theofficial website.

select-microsoft-product-and-hit-next

Then set up the program, and follow the instructions below to uninstall the Office app.

After that, the tool will detect the Microsoft Office installation files and start the uninstalling process.

Then the tool will ask you to restart the computer, so hit theRestartbutton.

click-next-button-from-saving-option

roll out the Microsoft Office app after booting up, and try launching Outlook in Safe mode.

After this, I bet you wont face any issues anymore.

Final Words

Launching Outlook in safe mode is a great way to troubleshoot certain issues with Outlook.

click-office-restart-button

Safe mode only allows the essentials files without other services and Add-ins.

you’re able to change Outlook preferences and troubleshoot Outlook repeatedly crashing issues.

But sometimes, for certain reasons, Outlook fails to open in this Safe mode.

click-yes-button

In this article, I have explained why this happens and how to overcome this problem.

I believe you already solve the problem by applying the methods from this guide.

Still, if you need further help regarding Outlook, comment below.

hit-restart-button