Hello all,

I got an setup error when I tried to install Windows 8 Release Preview to the second primary partition (empty) on the internal hard drive to dual boot with Windows 7 (x64).

Setup failed with the error "We couldn't create a new partition or locate and existing one. For more information see the setup log files."

Do you have any fix?

You have to burn the DVD, then boot to it. During the installation choose Custom Install, then point to the empty partition.

Resolution:

Try to following methods:

1)Check if you have an SD Card in the system. If you do, you remove it and run setup again.

2) Once the setup fails to find the partition, just close the setup window (the top-right-hand side red X does the job).

From that point, you should be brought back at the initial setup screen.Choose "Repair" then go to the advanced tools and start the command line.

Start DISKPART.

Type LIST DISK and identify your SSD disk number (from 0 to n disks).

Type SELECT DISK <n> where <n> is your SSD disk number.

Type CLEAN

Type CREATE PARTITION PRIMARY

Type ACTIVE

Type FORMAT FS=NTFS QUICK

Type ASSIGN

Type EXIT twice (one to get out of DiskPart, the other to exit the command line tool)

Reference link