Fix error 0x80070666 when installing Microsoft Visual C++

You may encounter Error 0x80070666 when installing Microsoft Visual C++ redistributable software system on your Windows 11 or Windows 10 computer. In this post, we will identify the potential causes, as well as provide the most sufficient solutions affected PC users can apply to fix the computer error on their organization.

Microsoft Visual C++ Installation Error 0x80070666

When you encounter this issue, you'll receive the chase full error message;

Setup Unsuccessful

One or more issues caused the setup to fail. Please fix the issues and so retry setup. For more information see the log file.

0x80070666 – Another version of this intersection is already installed. Installing of this version cannot continue. To configure or remove the existing version of this product, use Add/Remove Programs on the Board.

You may encounter this error callable to one or more of the following reasons:

Visual C++ is already installed on the arrangement.
Botched Ocular C++ installation connected the system.
Unfinished Windows Update installation for the synoptical adaptation of Visual C++ software system.

Error 0x80070666 when installing Microsoft Visual C++

If the Error 0x80070666 has occurred connected your Windows 11/10 device when installing Microsoft Sense modality C++ redistributable package, you can try our recommended solutions below in no particular order and see if that helps to resolve the issue.

Play Curriculum Install and Uninstall Troubleshooter
Uninstall all current Visual C++ Redistributable Package
Rectify the Visual C++ installation
Perform a Tidy Charge and install box

Let's take a search at the description of the process involved concerning each of the listed solutions.

Before you try the solutions downstairs, check for updates and install any available pending bits along your Windows 11/10 device and see if the error reappears when you try the Visual C++ establis surgery again.

1] Run Computer programme Install and Uninstall Troubleshooter

Run Program Install and Uninstall Troubleshooter

You tail end lead off troubleshooting to set the Error 0x80070666 that has occurred happening your device when installing Microsoft Visual C++ by running the Program Install and Uninstall Troubleshooter from Microsoft and see if the issue is resolved. The Program Install and Uninstall troubleshooter fixes corrupted registry keys and is designed to help you automatically repair issues when you're plugged from installation or removing programs happening Windows 11/10 system.

2] Uninstall all current Visual C++ Redistributable Package

Uninstall Visual C++ Redistributable Package

You are likely to encounter the error in view if a version (older or newer) of the same distributable software that you're difficult to install is already installed on the system. In that caseful, to resolve the number, you need to uninstall (sooner, use third-party software uninstaller), wholly versions of the package from the system.

To uninstall all current Visual C++ Redistributable Package via Settings app on your Windows 11/10 PC, do the following:

Press Windows key + I to ingenuous Settings app.
Click Apps on the left navigation pane.
Now, scroll pull down on the Apps & features right window pane.
Click the ellipsis (three vertical dots) for a Visual C++ Redistributable.
Pick out Uninstall.
Click Uninstall to confirm.
Take after the on-screen instructions to eat up uninstalling the package.
Repeat the steps to take away complete other packages.
Once finished, reboot the PC.

On boot, taste instalmen the package that was failing in the first place and construe if the install surgery completes with success. Differently, try the next solution.

3] Renovate the Optical C++ initiation

Repair Visual C++ Redistributable Package

If the Visual C++ facility is corrupted you may encounter this outcome. In this case, to fasten the error, you can repair the Visual C++ Redistributable via Settings app – do the following:

Open Settings app.
Chink Apps on the left piloting loony toons.
Now, scroll down connected the Apps & features right pane.
Click the eclipsis (tercet vertical dots) for the problematic Visual C++ Redistributable.
Select Modify.
Click Repair.
Follow the on-screen instructions to finish the animate operation.

Alternatively, you can reparation the Ocular C++ Redistributable via Programs and Features on your Windows 11/10 computer by following the instructions in the point on how to fix Runtime Erroneousness R6034.

Some affected users reported they had no means of repairing the package as it was not listed in Programs and Features in Contain Panel or Apps & features in Settings app. In this case, you need to download the Visual C++ package installation executable and force the reanimate window to appear through Command Prompt. Do the following:

Download the installer for the redistributable package to a location (rather desktop) along your PC.
Next, press Windows key + R to call fort the Take to the woods dialog.
In the Run dialog boxful, type cmd and so press CTRL + SHIFT + ENTER to open Command Prompt in admin/elevated mode.
In the command command prompt window, type the control below and hit Enter. Replace the UserName placeholder with the true logged in username.

Compact disk C:\Users\UserName\Screen background

Close, type in the bid below and hit Enter:

vc_redist.x64.exe /uninstall

Now, click Stamping ground.
Accompany the along-screen instructions to finish the repair operation.
Bring up PC when done.

Happening boot, try to establis the Microsoft Modality C++ Redistributable package once more. If the erroneousness reappears, you canful endeavor the next solution.

4] Execute a Clean Boot and install package

Install program in Clean Boot State

This solution requires you to perform a Clean Boot out to slay any conflicts that English hawthorn occur during the Visual C++ package installation. This means starting your Windows 11/10 computer with the minimum required drivers and programs, and then running the package installing in that system state.

Hope this helps!

Related post: Fix Error 0xC0070652 when installment or uninstalling Programs.

How do I kettle of fish Microsoft Visual C++ 14.0 required error?

To bushel Microsoft Visual C++ 14.0 required error, do the following:

Go to Build Tools for Visual Studio 2017.
Select free download under Visual Studio Community 2017 to download the installer.
Run the installer.
Select what you want below Workload tab.
Below Windows, there are 3 choices. Only check Screen background development with C++.
In CMD timesaving, type pip3 install misaka hit Introduce.

What is 0x80240017 unspecified error?

If you have encountered the 0x80240017 unspecified wrongdoing happening your Windows 11/10 device, the erroneousness simply means that the redistributable software packag wasn't installed properly connected your system. The error usually appears during the facility of Visual C++.