Something is using my Hotmail account to send spam

[snorkyller]

Something is using my Hotmail account to send spam and I'm receiving a lot of delivery failure notifications. These spam emails are all in my "sent" folder, as if I personally sent them, and are all sent to unknown email addresses, not to my friends.

Is it a problem within the hotmail network, or should it be on my computer? (virus).

I did a scan with both malwarebyte antimalware and avira antivirus, and I found nothing. This problem appears after I started using my hotmail account on my computer via windows live mail, but maybe that's just a coincidence. I have uninstalled windows live mail.

Any suggestion would be appreciated.

Thanks

 

[tlarkin]

change your password, you probably got phished

 

[Deviousmind]

change your password, you probably got phished

next install super anti spyware and update then run http://download.cnet.com/SuperAntiSpyware-Free-Edition/3000-8022_4-10523889.html?tag=mncol
also install a keyscrambler or snoopfree

 

[snorkyller]

Thanks. I'll try your suggestion. It's hard to believe I have been phished since I'm so aware of that...

 

[snorkyller]

Can you suggest me a key scrambler.

Snoopfree isn't compatible to win 7, and I tried KeyScrambler as a firefox plugin and it almost make my computer unusable (computer froze on startup and a windows message telling me that I'm using a corrupted version of windows 7).

Thanks