Remove your disk from the disk drive and check it for defects/scratches. Make sure the disc is clean. Re-insert the Install CD and run the Installer again. If you still experience this error after cleaning the disc go into the Control Panel and select User Accounts. Select the Account Control (UAC) and turn it off. Restart your machine after making this change and then run the Installer again.
Sony Xperia Z5 review: Hands-on with the phone which the Z3+ should have been