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#61
Hi
Since the update description says it improves security, i suspect it may introduced "SecureBoot". While 64 bit edition of "Windows 7" is capable of booting in UEFI mode, it is still not "SecureBoot" compatible but latest version of "Ubuntu" is. You should check in BIOS setup for any settings related to "SecureBoot" and if one available, disable it.
If no "SecueBoot" related settings can be seen, make sure your USB is working fine by trying it on another machine. Also try the DVD as Greg suggested.
Last edited by Anshad Edavana; 21 Aug 2014 at 06:17.