- Can't update your windows. Windows Update fails.
- Can't access your proxy setting in MSIE. IE crashes once you click the "LAN setting".
- IE can't access Internet (thru proxy).
I'm having all these issues since I upgrade to IE9. And here I find the solution to fix/repair the 80240030 error for me:
- Open command prompt (with Administrator mode).
- Type "netsh winhttp reset proxy"
- Type "net stop wuauserv"
- Type "net start wuauserv"
It does works in Windows 7 (32-bit & 64-bit) too. Enjoy!