The install process of Ad-Aware Free Internet Security has not changed:
- A PC restart is required to allow the program to install the Ad-Watch Live driver that is offering real-time protection against malicious processes.
- The setup file of Ad-Aware still bundles Google Chrome installer which is optional but not required to use Ad-Aware free protection.

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Ad-Aware antivirus will install on Windows 2000 Pro, XP and 32-bit/64-bit of Vista and Windows 7. The program will install the plug-in, Download Guard for Internet Explorer as additional protection when downloading files. After the install process and the required PC restart, Ad-Aware report its status to the Windows Security Center.

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It will not disable Windows Defender, the free anti-spyware by Microsoft in Vista and Windows 7 or for XP.
The program will use 85MB of hard-disk space and will install the Microsoft Visual C++ Runtime 9.0 SP1. I'm glad to see that it's a service pack because some vendors continue to install the vulnerable version of this component from Microsoft. An example is Spyware Doctor by PC Tools.
There have been reports from Ad-Aware V8.3 users that the program will not install in English and it was acknowledged by Lavasoft as glitch with a bug fix on its installer coming this week.