Create Rule From Message

Create Rule From Message;
I was being targeded with pronogerphy, a friend showed me how to block the stuff from coming into my email screen.
One day not realizing this had happened I blocked a friend from emailing me. I was told I could go into the file of blocked emails and reverse everything. Well I figured out how to get into that file. But then I really messed things up.
I would like to know if anyone can tell me how to get my computer back to the way it was before I tried to reverse things. I don't understand some of the termaknowlegy.
I have Outlook Express.

 

What Operating System are you running? Win ME or Win XP?
They have system restore, otherwise it's scanreg /restore??

 

I have Windows ME
HP COmputer

 

Start > Accessories > System Tools > System Restore.
Hit Next and Look for a bold date when it worked ok.
Click the date on the left, then look on the right and click the time it worked and keep hitting Next. It will reboot and should work.