In my computer windows defender gone turned off (windows vista home premium)?

I am getting a message that there are multiple security problems in your computer. when I checking in detail it shows that 'virus protection - not found' 'spyware and other malware protection -off' 'windows defender - turned off'

Actually I have installed an Antivirus software (only antivirus and firewall) and it shows as active

please any one can help me to solve this problem?

In my computer windows defender gone turned off (windows vista home premium)?avast

To restart your defender just go to start, all programs and right click on the windows defender and select send to desktop and then you can control defender right from your desktop, I do it all the time, Good Luck;

This is very good tool and I recommend it to keep your pc in good running condition,

Windows Advanced Care , This tool will keep you computer running good and you can see the startup programs to help you understand what runs in the startup programs; It also imunizes your computer against the attcks we face each time we go on the internet Just run it once a day and your worrys are much less,

http://www.download.com/Advanced-Windows...

Here is a very good tool called Winpatrol and it monitors your computer for programs that try to run on your system without your knowlege, This tool also allows you to manage all the startup programs on your computer,, It also warns you if a program tries to run without your permission, I use this software and I recommend it,