I recently updated to Internet Explorer 10 (Windows 7 64bit) and when I browsed to a website with a security certificate problem: “There is a problem with this website’s security certificate.”, the “Continue to this website (not recommended).” option was missing!!!
The issue here is that Microsoft restricted access to pages which are using a key using less than 1024 bits for protection. Some Oracle product using websites (including Oracle VM Manager) are still using this!
Browsing to the site, (which must be done to https in Oracle VM Manager 3.2), gives the page without the Continue to this website (not recommended) option:
Less than 1024 key restriction
After browsing around on the internet I found a Microsoft Knowledge Base article about an advise to block the use of RSA certificates that have keys that are less than 1024 bits long… : http://support.microsoft.com/kb/2661254
To skip all the text on this page to the command one needs to unblock this restriction and for example set the minimum key length to 512; run the following in a elevated command line (cmd.exe ‘run-as-administrator’):
certutil -setreg chain\minRSAPubKeyBitLength 512
Now the “Continue to this website (not recommended).” is back!
If you want to revert this change and go back to the default of an 1024 bit key minimum, run:
certutil -delreg chain\MinRsaPubKeyBitLength