Avast Registry Clean is one of the features available in the Avast Cleanup Premium program. This program removes all the junk files on your system and boosts the system performance. The registry items might be broken, and in this case, the avast registry cleaner program is used to remove those registry items.
Install Avast Registry Cleaner
The step-by-step instructions to install the Avast Cleanup program are given here.
Make sure no other antivirus program is running on your Windows computer. If so, uninstall it.
Download the setup file of the Avast Cleanup Premium tool from the manufacturer website.
By default, the downloaded setup file will be saved in the Downloads folder.
Navigate to the Downloads folder, search for the Avast setup file, and right-click it.
Note: The setup file will be named as avast_cleanup_setup.exe.
Now, choose the Run as administrator option.
If the User Account Control dialog box appears on the screen, select the Yes option.
Now, the Select Setup Language dialog box will appear on the screen.
Check if the English language is selected from the ‘ Select the language to use during the installation’ drop-down menu and then select the OK option to continue.
If you need to change the installation location of the Avast Cleanup Premium program, click the Browse button and select the location.
Select the Next option in the Select Destination Location dialog box.
Once the Install option is selected, the installation progress of the Avast Cleanup Premium program will be displayed on the screen.