There are some indications that Microsoft is going to include AV protection in Windows 8 (supposedly due out in fall of 2012) and call it Windows Defender (but it will be more like Microsoft Security Essentials).
However, a person could still probably install their own AV. Personally I am starting to think seriously about NOD32 Version 5 because in testing I have seen it did very good, and it is fast and does not use a lot of computer resources. I had a problem with Kaspersky recently.
NOD32 has Host Intrusion Prevention System or HIPS, to prevent unauthorized changes to the computer. Sandboxes and HIPS are being recommended more and more for protection. If you go to remove-malware.com there is a test of NOD32 Version 5. Against zero day and near zero day malware it stopped everything except for some file that got into temporary files and apparently was not active malware. The guy who did the testing has 8 years of experience removing malware from computers, plus he does a lot of other work in the computer field.
However, a person could still probably install their own AV. Personally I am starting to think seriously about NOD32 Version 5 because in testing I have seen it did very good, and it is fast and does not use a lot of computer resources. I had a problem with Kaspersky recently.
NOD32 has Host Intrusion Prevention System or HIPS, to prevent unauthorized changes to the computer. Sandboxes and HIPS are being recommended more and more for protection. If you go to remove-malware.com there is a test of NOD32 Version 5. Against zero day and near zero day malware it stopped everything except for some file that got into temporary files and apparently was not active malware. The guy who did the testing has 8 years of experience removing malware from computers, plus he does a lot of other work in the computer field.