Help installing Windows 8 on SSD

[gizbug]

Im reformatting and reinstalling Windows 8.
I've always installed it on my Samsung 830 128gb SSD
When I boot up Windows 8, and try to select where to install windows, My SSD is broken up into
Drive 0 Partition 1: System Reserved 350MB/90.MB free (Type Secondary)
Drive 0 Partition 2: 107GB/107GB Free (Type Primary)
Drive 0 Unallocated Space 11.9GB/11.9GB (No Type)

I am not sure if this layout is right. I've always had my Windows 8 On Drive 0 Partition 2. However now it says Windows can't be installed on drive 0 partition 2.. The select disk has an MBR partition table. On EFI systems, Windows can only be installed on GPT disks.


How do I fix this?

 

[Bubbaleone]

If you want to use GPT: Boot your install DVD in UEFI mode from the BIOS boot menu. Instead of installing Windows select the repair tools option, then open the command prompt and type the following commands, pressing Enter after each line:

diskpart
(starts the diskpart tool)

list disk
(This will give you a list of disk numbers to select from)

select disk #
(replace # with the number of your SSD)

clean
(this leaves the disk in an unallocated state and completes quickly)

If you want to perform a secure erase on the SSD use the "clean all" command instead of the "clean" command, but keep in mind that running "clean all" on a 128 GB drive will take about 30 minutes to complete.

Exit diskpart, close the command prompt, then reboot. Again selecting UEFI mode from the BIOS boot menu, select the Advanced install option, select the SSD, and the installer will create the GPT and NTFS format when you click Next to start the installation.

If you want to use MBR: Boot your install DVD in AHCI mode from the BIOS boot menu and follow the same steps for diskpart, as well as letting the Windows installer automatically partition and format the drive.

Edit: If you want to over-provision a MBR drive; use the Samsung SSD Magician utility after the installation is completed. Over-provisioning with a GPT drive, from the Advanced install options, would require an extra step to manually create an unformatted partition size that's 90% of the listed drive capacity, then select that partition to install Windows on and click Next to proceed as above. This leaves 10% (~12 GB) of the drive unallocated for over-provisioning, and has to be done manually because the Samsung Magician doesn't recognize GPT.


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