MKU file icon

MKU File Extension

MagicKey Units Definition Format

What is MKU file?

Full format name of files that use MKU extension is MagicKey Units Definition Format. Files with MKU extension may be used by programs distributed for Windows platform. MKU file format, along with 1305 other file formats, belongs to the Settings Files category. The most popular software that supports MKU files is MagicKey. Software named MagicKey was created by Advanced Computer Innovations, Inc.. In order to find more detailed information on the software and MKU files, check the developer’s official website.

Programs which support MKU file extension

Below is a table that list programs that support MKU files. Files with MKU suffix can be copied to any mobile device or system platform, but it may not be possible to open them properly on target system.

Programs that support MKU file

Windows Windows

Updated: 05/09/2020

How to open file with MKU extension?

Being unable to open files with MKU extension can be have various origins. What is important, all common issues related to files with MKU extension can be resolved by the users themselves. The process is quick and doesn’t involve an IT expert. We have prepared a listing of which will help you resolve your problems with MKU files.

Step 1. Get the MagicKey

Install software to open MKU file The main and most frequent cause precluding users form opening MKU files is that no program that can handle MKU files is installed on user’s system. To address this issue, go to the MagicKey developer website, download the tool, and install it. It is that easy Above you will find a complete listing of programs that support MKU files, classified according to system platforms for which they are available. One of the most risk-free method of downloading software is using links provided by official distributors. Visit MagicKey website and download the installer.

Step 2. Verify the you have the latest version of MagicKey

Update software that support file extension MKUIf the problems with opening MKU files still occur even after installing MagicKey, it is possible that you have an outdated version of the software. Check the developer’s website whether a newer version of MagicKey is available. It may also happen that software creators by updating their applications add compatibility with other, newer file formats. If you have an older version of MagicKey installed, it may not support MKU format. The most recent version of MagicKey is backward compatible and can handle file formats supported by older versions of the software.

Step 3. Set the default application to open MKU files to MagicKey

If the issue has not been solved in the previous step, you should associate MKU files with latest version of MagicKey you have installed on your device. The method is quite simple and varies little across operating systems.

Associate software with MKU file on Windows

Selecting the first-choice application in Windows

  • Choose the Open with entry from the file menu accessed by right-mouse clicking on the MKU file
  • Next, select the Choose another app option and then using More apps open the list of available applications
  • The last step is to select Look for another app on this PC option supply the directory path to the folder where MagicKey is installed. Now all that is left is to confirm your choice by selecting Always use this app to open MKU files and clicking OK.
Associate software with MKU file on Mac

Selecting the first-choice application in Mac OS

  • Right-click the MKU file and select Information
  • Find the Open with option – click the title if its hidden
  • From the list choose the appropriate program and confirm by clicking Change for all....
  • A message window should appear informing that This change will be applied to all files with MKU extension. By clicking Continue you confirm your selection.

Step 4. Ensure that the MKU file is complete and free of errors

You closely followed the steps listed in points 1-3, but the problem is still present? You should check whether the file is a proper MKU file. Being unable to access the file can be related to various issues.

Check MKU file for viruses
1. Check the MKU file for viruses or malware

Should it happed that the MKU is infected with a virus, this may be that cause that prevents you from accessing it. Scan the MKU file as well as your computer for malware or viruses. If the MKU file is indeed infected follow the instructions below.

2. Ensure the file with MKU extension is complete and error-free

Did you receive the MKU file in question from a different person? Ask him/her to send it one more time. The file might have been copied erroneously and the data lost integrity, which precludes from accessing the file. If the MKU file has been downloaded from the internet only partially, try to redownload it.

3. Check if the user that you are logged as has administrative privileges.

Sometimes in order to access files user need to have administrative privileges. Log out of your current account and log in to an account with sufficient access privileges. Then open the MagicKey Units Definition Format file.

4. Verify that your device fulfills the requirements to be able to open MagicKey

If the systems has insufficient resources to open MKU files, try closing all currently running applications and try again.

5. Check if you have the latest updates to the operating system and drivers

Regularly updated system, drivers, and programs keep your computer secure. This may also prevent problems with MagicKey Units Definition Format files. It may be the case that the MKU files work properly with updated software that addresses some system bugs.

Do you want to help?

If you have additional information about the MKU file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on MKU file.

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