hi guys,
i am having e1505 MCE, x1400 in it
i formatted my system recently and after that for a few days my media center didn't work.i uninstalled rollup 2 and media center started working fine.but now i am not able to reinstall rollup 2.i am able to download the rollup 2 package but before the installation gets started its displaying the error code "0x643".guys help me out.plzzzz