How to Resolve Avast Antivirus Error 42139

12 Feb 2019 17:35 475 Hits 1 Comments
There are some times when you may encounter error code “42139” with Avast antivirus, a security product. 

There are some times when you may encounter error code “42139” with Avast antivirus, a security product. The error message could display during the installation of the security product, Avast software related program is running, during start-up or shut-down of the windows operating system. This is estimated that when the error 421339 displays, it crashes the active program window. Due to error, computer crashes regularly with error 42139 when running the similar program. Windows might run slowly and begin responding gradually to mouse or keyword input and more. To fix this error code, you can call antivirus experts through Avast technical support number 1-888-343-0444. Online Antivirus experts will guide you step by step for fixing this error code.

Repair Registry Entries Related with Error Code 42139-

In order to repair your windows registry manually, you can create a backup just by exporting a part of the registry related with error 42139-

Firstly, you need to click on “Start” option.

Secondly, in the search box, you need to enter “command” button.

Thirdly, keep hold of CTRL-shift on your keyboard, and hit, “Enter” button.

Next, you will be encouraged with an authorization dialog box, click on “yes” for further preference.

Then, you will observe a black box with a blinking cursor.

Next, you can type “regedit and hit “enter” button.

Pick “Export” button from the file menu.

Choose folder where you want to save the Avast backup key in the saving list.

Type a name for your backup file in the file name box button.

Check that “chosen branch” is chosen and click on “save” button.

In the final step, the file is saved with a .reg file extension.

And you need to keep a backup of Avast! Antivirus-related registry entry. Thus, you can enjoy Avast antivirus effectively.

The above-described troubleshooting solutions are very simple to follow. By following all these steps, you can fix Avast Antivirus Error 42139 immediately. Still, if you are encountering by this error code, you can call at Avast customer service phone number to connect with our antivirus experts who will help support  you properly. Online professionals are very experienced to get rid of this error.



About The Author

MichaelOscar 13


I am Michael Oscar and I m providing you the best solution regarding Avast antivirus related any problems. Call Avast antivirus customer service number +1-888-343-0444 to get expert assistance.


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