The safest way to use VAG diagnostic software is to buy a legitimate interface. Authentic hardware usually comes bundled with the genuine software license. This ensures no malware, guaranteed updates, and technical support.
Each hotfix may come with its own set of instructions. Follow these carefully, as some may require you to manually replace files or adjust settings within the software.
However, the term in the software piracy world is a massive red flag. A repack is a modified installation of software that has been altered to bypass security or licensing requirements. While the promise of a free tool is enticing, downloading cracked automotive software is one of the most dangerous things you can do to your computer and your car.