What is GPT partition or GUID and how to format, remove, delete it or convert GPT disk to MBR disk. GUID Partition Table or GPT uses GUID and is a standard for the layout of the partition table on.

I would also suggest you create a bootable copy using the Windows 7 USB/DVD tool instead:

After obtaining the .iso file you use the Microsoft .iso to USB/DVD tool to create a bootable DVD or USB (requires a blank DVD or USB flash stick of at least 4 GB).

Boot from the Windows 7 USB

Format Gpt Drive Windows 7 Installation

If you are installing from a thumb drive, see the following instructions how to prepare your computer to boot from one:

Click Install Now

Accept License Agreement

When the option is displayed to select an installation type, click (Custom Advanced)

Click Drive Options

Select the drive/s click Delete

Click New

Click Apply

Click OK

Click Format and click Next to proceed with the installation

If the Windows install disk doesn’t format it you can do the following to reformat your drive:

1. Download and burn a Gparted ISO from here:

2. Boot from the Gparted disk.

Create Gpt Partition Windows 7 Free Download

3. Use Gparted to delete all partitions on the hard drive.

4. Under “Device” choose Create Partition Table to make a new partition table.

5. Create a NTFS partition (or you could wait and create a partition when installing Windows).

Create Gpt Partition Windows 7 Software

6. Then boot from the Windows install disk and install Windows.