I don't know wether or not you are using a firewall... but could be the firewall is blocking the connection of those verifications with your computer...
Next to this the pop-up killer can give problems. First try to disable that one. And if you have a firewall also disable it.
If that doesn't work you can always use sites like Microsoft support:
http://support.microsoft.com/default.aspx
Also your registry key could be damaged
http://support.microsoft.com/?kbid=259537
Also:
When you try to gain access to a security-enhanced Web site, you may receive the following error message:
The page cannot be displayed
Solution:
Quit Internet Explorer (if it is running).
Click Start, point to Settings, click Control Panel, and then double-click Internet Options.
Click the Advanced tab.
Scroll down to the Security section.
Clear the Use PCT 1.0 selection.
Clear the Use TLS 1.0 selection.
Click OK.
Just some thoughts