RegDefense 4.1.5.6 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The following version: 4.1 is the most frequently downloaded one by the program users.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. This program is a product of Xionix Inc. You can set up RegDefense on Windows XP/Vista/7/8/10/11 32-bit. RegDefense is categorized as System Utilities. RDFNSStartuper.exe, Reg32.exe, RegDefense.exe and RegistryDefense.exe are the most common filenames for this program's installer.
From the developer:
RegDefense is the Top Registry Cleaner used amongst experts and computer professionals. RegDefense's Patented Technology combines a powerful deep registry scan with an Easy-To-Use interface. RegDefense 2009 does not require any technical knowledge making it the right choice for every PC user. Errors and corrupt files in your Windows registry compromise the integrity of your system.
You may want to check out more software, such as AMUST Registry Cleaner, Appget or HS WinPerfect, which might be related to RegDefense.