sign in problem

hi
I would like to thank you for your great insights on users issues,


I'm not sure where I can enter my issue I tried other topics but had no right to make posting kindly find the right place for it and move it ehre ever it was suppose to be and let me know, thanks

I just got a new hp lap top 2 weeks ago with windows vista home edition

it was perfect until 5days ago I think I run a windows updateer or some thing since then

I tried what ever I know in internet options that is

security
privacy
and advanced settings
to trusted sites
lowering security levels
restoring default
checked all ssl and tsl

my webmail account sign in ok
my gmail sign in ok
AOL cant sign
I'm unable to sign in to hotmail (msn massenger works fine but if you click the link to your mail it dosen't IE says erorr http 400 can't find web page even though that through the msn massenger I,m able to see the inbox from the small window that comes with the msn sign in windows live today,
some times I can go to msn My Page and some times I can't if I press the mail link in the top of the My Page I get the same error, if I click Spaces it stays for ever and then it gives me the same erorr EI cannot display the webpage, finally I looked to my

firewall sittings made sure no conflicts
my antivirus anti spyware trusted programs and so on

hotmail or any related windows live sites can't open any thing has to do with my sign in except msn massenger which is the same ID and password

could you kindly advice

Shareef