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• The another installation is in progress error message can show up when installing virtually any piece of software for Windows. Since there can be only one installer process running, we sometimes have this situation.
• If you are not trying to install anything else simultaneously, quick fixes are to end the Windows Installer process, or to restart it. More options are in the article.
• This article is part of the Windows Installer series that you can find on our site. Check it out for similar pieces.
• We enjoy fixing errors. That's why you can visit the Windows 10 Errors Troubleshooting Hub which is filled with many guides and tutorials.

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Is there a worst thing than being unable to install a third-party application as, seemingly, something else is currently installing in the background?

That’s the whole deal with the Another installation is already in progress error on Windows 10. Any solutions? More than a few, actually.

In order to get the most out of your PC you need to install third-party applications. Installing applications is usually a simple and straightforward process, but sometimes certain errors can occur.

Users reported Another installation is in progress error when trying to install certain applications, so today we’re going to show you how to fix that error on Windows 10.

How to fix Another installation is already in progress on Windows 10?

1. Restart the Windows Installer service

Windows relies on its services in order to run properly, and there’s a service called Windows Installer that’s in charge of installing new software.

Whenever you try to install a new application, this service will start and help you install it.

Sometimes certain repair or uninstall processes can start automatically in the background, and it can require Windows Installer service in order to run.

If you try to install another software while Windows Installer is running you’ll encounter this error. One of the simplest ways to fix this problem is to open the Services window and to restart the Windows Installer service.

To do that, follow these steps:

Press Windows Key + R to open the Run dialog. Enter services.msc and press Enter or click the OK button.

A list of all available services will now appear. Locate Windows Installer on the list and double click it to open its properties.

If the service is running, click the Stop button to stop it. Wait for a few seconds and then click the Start button to start it again.

2. End Windows Installer process

As we previously mentioned, the Windows Installer service is in charge of installing new applications on your PC.

Windows Installer process is related to this service, and according to some users, you can fix this problem simply by ending the Msiexec process using Task Manager.

This is rather simple, and you can do it by following these steps:

Right-click it and choose End Task from the menu. Often you’ll see a 32-bit and 64-bit version of Windows Installer running. If you have multiple Windows Installer processes running be sure to stop them both.

3. Disable Windows Installer service and restart your PC

Windows Installer service is a common culprit for Another installation is already in progress error, and if restarting the service doesn’t help, you might want to temporarily disable it.

This is a simple process and you can perform it by following these steps:

Few users also reported that they fixed the problem simply by changing the Startup Type of Windows Installer service to Automatic. This is a simple procedure, and you can perform it by following the steps above.

4. Perform Disk Cleanup

Few users reported that performing Disk Cleanup fixed the issue for them. It seems that Another installation is already in progress error is caused by temporary files left by previous installations.

By running Disk Cleanup you’ll easily remove any temporary files left by older installations. Running Disk Cleanup is quite simple, and you can perform it by following these steps:

Press Windows Key + S and enter disk cleanup. Choose Disk Cleanup from the menu.

Select the system drive, by default it should be C, and click OK. Wait while Disk Cleanup scans your PC.

Once the Disk Cleanup opens, select all options and click the OK button to clean your disk.

For more advanced clean-up we advise you to check some of the best tools to delete junk files that we selected.

5. Perform a Clean Boot

According to users, sometimes Another installation is already in progress error can appear due to startup applications or services. To fix this problem, you need to perform a Clean Boot, and you can do that by following these steps:

Press Windows Key + R and enter msconfig. Press Enter or click OK.

Check Hide all Microsoft services option and then click on Disable all.

Now go to Startup tab and click on Open Task Manager.

A list of all available startup items will appear. Right-click each item on the list and choose Disable from the menu.

When your PC restarts, check if the problem still persists. If the issue is resolved, it means that a third-party application or service was causing the problem.

To identify the problem, open System Configuration window and turn on disabled services one by one. Keep in mind that you’ll need to restart your PC after enabling a service in order to apply changes.

Be sure to repeat the same process in Task Manager for Startup applications.

6. Check your Registry

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Sometimes this problem can be caused by certain values in your registry, so you’ll have to manually edit those values.

Editing your registry can be a dangerous process, so we recommend that you export your registry and use it as a backup in case anything goes wrong. To fix this problem, do the following:

Press Windows Key + R and enter regedit. Click OK or press Enter.

After making changes to your registry, you need to set the Startup type of the Windows Installer service to Disabled. After that, restart your PC and set the Startup type for Windows Installer to Manual.

For detailed instructions on how to do that, check the Solution 3.

7. Uninstall and reinstall Office

Users reported Another installation is already in progress error message while installing Microsoft Office. This can occur because another Office installation or update was running in the background when you started the setup.

To fix this problem, check for the Office icon in the system tray to see if the installation is running. If Office is installing or updating, you’ll need to wait for the process to finish.

If there’s no Office icon in the system tray, you need to uninstall and reinstall Office. To uninstall Office, simply follow these steps:

If the problem persists, consider using a professional-level tool. Unfortunately, some apps are really difficult to uninstall completely.

They leave behind residual files that will interfere with the functionality of your system, in one way or another.

We recommend trying one of the best uninstaller software available because they are equipped with up-to-date technologies that detect and safely remove the smallest traces of any app.

8. Uninstall Java and download offline installer

Users reported this error message while installing Java on their PC. To fix this problem you need to uninstall your current version of Java. To do that, follow these steps:

Locate Java on the list and click the Uninstall button to remove it.

After Java is uninstalled from your PC, you need to download offline installation of Java. After you download it, start it and follow the instructions on the screen.

9. Re-register Windows Installer

In most cases, this error is caused by Windows Installer, and one potential solution is to re-register Windows Installer. This is relatively simple to do and it requires you to enter two commands in Command Prompt.

To do that, follow these steps:

Press Windows Key + X to open Win+X menu. Select Command Prompt (Admin) from the list.

10. Create a new Windows user

If none of the previous solutions work, your Windows user profile might be corrupted. If that’s the case, you’ll need to create a new user profile and use it instead.

Creating a new Windows user account is rather simple, and you can do it by following these steps:

In Other people section select Add someone else to this PC.

Select I don’t have this person’s sign-in information.

Set the user name for the new user account and click Next. If you want, you can also protect the new account with a password.

After creating a new user account, log out of our current account and switch to the new one. Check if the error message appears on a new user account.

If everything is in order, you might want to move your personal files to a new account and start using it as your main account.

11. Fix the “Another installation is in progress” error for Visual Studio 2015

Solution – Edit your registry

Another installation is already in progress error can appear while installing any application, and users reported that it appears while installing Visual Studio 2015.

To fix this problem, you need to delete a single value from your registry. This is relatively simple, but before you make any changes to your registry, we strongly advise that you create a backup.

By doing so, you can remedy any potential issues that can occur after modifying the registry. To fix this problem, follow these steps:

In the right pane locate PendingFileRenameOperations value. Right-click it and choose Delete from the menu. We have to mention that deleting values from the registry can lead to certain problems, so we advise you to create a backup of your registry just in case.

Another installation is already in progress error will prevent you from installing new software. This can be a tedious problem, but we hope that you solved it by using one of our solutions.

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