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Fix: Another Installation Is in Progress Office 365

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Updated onFebruary 22, 2024

updated onFebruary 22, 2024

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Are you getting error code 0-1018 0 when installing Office 365? That states:We’re sorry but we could not start your Officeinstallation. Anotherinstallationis in progress.

This is usually due to another Officeinstallationor updateprocessin the background or older MS Officeinstallationfiles that have not been thoroughly removed from Windows.

Here are a few ways you can fix it and getOffice 365up and running.

How do I fix theAnother installation is in progresserror?

Another installation is in progressmessage can prevent you from installing Office 365 on your PC. This can be a big problem, and speaking of installation problems, here are some issues that users reported:

1. Check for Another Installation Process

Sometimes you might have another installation running in the background, and that might give youAnother installation is in progressmessage while installing Office 365.

To fix this problem, you need to stop the installation on your own or use theTask Managerto end the installation process.

It’s also worth mentioning thatWindows Installerandmsiexecprocesses can cause this problem to appear, so if you see them running, be sure to disable them. After closing the problematic process, try to install Office again.

2. Fix Error 0-1018 0 With the System File Checker

In some cases, your installation can become corrupted, and that can causeAnother installation is in progressto appear. If you encounter this issue while trying to install Office 365, you might be able to solve the issue by performing an SFC scan.

Once the SFC scan is finished, check if the problem is resolved. Several users reported that the issue can persist even after you run an SFC scan. If that’s the case, you need to runDISM scanby doing the following:

After the DISM scan is finished, check if the problem is still there. If the problem is still there, or if you weren’t able to perform an SFC scan before, be sure to run the SFC scan again.

3. Check your antivirus

In some cases,Another installation is in progresserror can appear due to your antivirus. Third-party antivirus can often interfere with your system and cause this and other problems.

To fix the problem, it’s advised to disable certain antivirus features or your antivirus altogether temporarily. If that doesn’t work, your next step is to remove the third-party antivirus from your PC.

Windows 10 comes with Windows Defender, which works as a default antivirus, so even if you remove a third-party antivirus, you should remain protected. If removing the antivirus solves the issue, you should considerswitching to a new antivirus solution, such asESET HOME Security Essential, as it offers maximum protection and won’t interfere with your system.

4. Register Office 365 DLL Dependencies

Office 365 might be missing some DLLs (dynamic link library files) required to launch.

5. Uninstall Other Office Versions

Sometimes previous versions of Office can interfere with your current installation and causeAnother installation is in progresserror to appear. If that’s the case, you need to find and remove all Office installations from your PC.

You can do that using the regular method, but this method can sometimes leave certain files and registry entries behind. These leftover files can interfere with future Office installations, therefore it’s always recommended to useuninstaller software to remove applications from your PC.

If you’re unfamiliar with it, uninstaller software is a unique application that can remove any application from your PC, but it will also remove all files and registry entries associated with that application.

Once you remove all previous versions of Office from your PC, the problem should be completely resolved.

6. Run the Office 365 FIXIT Tool

7. Disable Windows Firewall

SometimesAnother installation is in progresserror can appear due to Windows Firewall. Office 365 installations need to download specific files from the Internet, and if your firewall is blocking it, you might encounter certain error messages.

To fix this problem, you are advised to temporarily disable your firewall. After you disable Windows Firewall, try to install Office 365 again and check if the issue reappears. Once you manage to install Office 365, turn back on your firewall.

8. Install the latest updates

Sometimes this error message can appear due to certain glitches on your system. However, Microsoft is working hard to fix these problems, and the best way to fix them is to install the latest updates.

For the most part, Windows 10 installs the missing updates automatically, but sometimes you might skip an update or two.

Windows will now check for available updates. If any updates are available, they will be downloaded automatically in the background and installed as soon as you restart your PC. Once your system is updated, check if the problem is still there.

Now, you should be able to install Office 365 on Windows 10 with those fixes. The Microsoft Support and Recovery Assistant tool for Office 365 and Outlook, which this Windows Report post provides further details for, might also come in handy for fixing errors 0-1018 0 and other things.

In case your device is controlled by your organization, the best way is to use aconfiguration file created with the help of the Office Customization Toolto control Office installation and updates.

Fix: Another Installation Is in Progress Office 365#

How do I fix theAnother installation is in progresserror?#

1. Check for Another Installation Process#

2. Fix Error 0-1018 0 With the System File Checker#

3. Check your antivirus#

4. Register Office 365 DLL Dependencies#

5. Uninstall Other Office Versions#

6. Run the Office 365 FIXIT Tool#

7. Disable Windows Firewall#

8. Install the latest updates#