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I have just installed Ubuntu 12.10 on my PC and the installation completed well. But now the problem is I am unable to boot Windows 8, in GRUB menu it shows both options, If I choose Ubuntu, it boots smoothly and if I choose Windows 8 it shows the following message:
error: device format "ldm/958e9087-d9d5-11e2-be71-0024d7280798/Volume1" invalid : must be (f|h) dN, with 0<= N < 128 press any key to continue...
and after some seconds... it shows :
A disk read error Press Ctrl+Alt+Del to restart.