Two possibilities:
1 ) Do you have any other security software that includes a firewall or
intrusion prevention technology ,such as Norton AV /Norton Internet Security
,McAfee ,Panda ,Kaspersky ,Zone Alarm or something like that.It can disable
Windows firewall in order to prevent software conflict because you have to
keep only one firewall always on.
or
2 ) You are infected by a malware (malicous software ) .
You need to scan with reputable solution in order to understand.
Try these:
# Panda Software free Active scan where you can check your computer for ALL
KIND of SECURITY THREATS
http://www.activescan.com
# Kaspersky free online scanner and checker for suspicious files
http://www.kaspersky.com/virusscanner
# LavaSoft's Ad-Aware SE Personal
http://www.lavasoftusa.com/software/adaware
# SpyBot Search and Destroy
http://www.safer-networking.org/microsoft.en.html
Update and perform full scans with the programs above.
If nothing is found ,you may also check for any suspicious softwares that
shouldn't be there.
Open Control Panel -> Add/Remove programs
also
C:\Program files
I don't understand something you say about the System Restore ..."it is set
to the current day" ??? What do you mean?
Report what happened .
If you have any other questions ,do not hesitate to contact the community
again!!!
Panda_man