Remember log in of every website in IE8 were disappeared after reboot when windows7 crashed. As a result of this issue, i have to re log in every website every time after it crashed. Have anyone face this issue like me? Is it bug of windows7 or IE8? Now, i use ff3.5 instead of IE.

orbitalz, This was the default behavior in Firefox for a while as well - many browsers, upon crashing, will deliberately empty their entire cache the next time the browser is started as a means of guarding against corruption. Remember that IE8 is currently a work in progress; it probably wouldn't hurt to post this suggestion to our comments thread , where it has a better chance of being considered by the developers.-Alex

You can change this in Internet Options -> Security -> User Authentication. But it's safer if you don't change it.Mobile AMD64 3000+, VIA Apollo K8T800 chipset, 1 G RAM, ATIRadeonMobility 9700, 20x DVDRW, C:XPSP3 (55G),D:WIN7 (25G),F:DATA (250G)