Suspicious Files found

Hi

For the last 4 days everytime I start the Pc I keep getting a message telling me that Avast

(Free version) has found suspicious files. The choice is set to ignore or if you click the dropdown box delete. If you select go it sends it to Avast for inspection.

The file is Documents/Settings/All users/Application Data/Microsoft/Microsoft Antimalware/
Definition Updates.

My system is Xp/ SP3/ set to auto updates from Microsoft/ Microsoft Firewall enabled/
Microsoft security Essentials and Avast Free which has just updated to the most recent version. The problem was also happening before the update.
I know I have 2 security suites running but have had no problems for months and was lead to believe they are compatible with each other.

Would be greatful if anyone can help and hopefully guide me how to rectify the problem as im probably at a bsic level with pc skills

Thanks

Eddie

Well now you know that you cant have two av’s so i would suggest removing MSE then there will be no problem, you can have window’s defender running with avast but not mse.
An excellent second scanner for you would be malwarebytes free or pro.

I would not run Windows Defender on XP either but I would run malwarebytes free on XP though.