Many people encounter a message like the Selected Disk is of the GPT Partition Style when they reinstall system. In fact, there is a simplest way to solve this problem. That is using AOMEI Partition Assistant Professional Edition.
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MBR and GPT are the format of hard disk. MBR is the abbreviation of master bootablerecord, and it only supports the maximum capacity with 2TB, up to four primarypartitions, or three primary partitions plus one extended partition. Most ofpersonal computer’s motherboard only supports BIOS and it is installed with MBR, so,for many users, they always install windows system on the MBR disk.
GPT is abbreviation of GUID partition table. It is a part of EFI, which is portbetween operating system and platform firmware. GPT can make use of a very large space that is more than 2TB limit of MBR disks. GPT disks allow an almost unlimitednumber of partitions. Each GPT partition has a unique identification GUID and apartition content type. And you can have more primary partitions. However, theWindows implementation restricts this to 128 partitions.
In terms of the description above, it seems that GPT disk is better than MBR,Unfortunately, the seldom of computers have EFI motherboard, not even mention makeuse of GPT disk. In the context of specific case, that may be the greatest ofshortages in GPT disk. As mentioned above, many people can’t install windows systemon GPT disk.
Why does such question happening? Based on what we analyze above, in order to bootWindows from GPT, our motherboard should support UEFI (EFI-boot & BIOS-boot),otherwise we should use MBR to boot from. More information please visit: http://technet.microsoft.com/en-us/library/cc738081(WS.10).aspx
Notice that I said “the Simplest Way”. Although there are many solutions wecan find from the forum, I’d like to suggest you use the simplest way: convert GPTto MBR disk.
In some technology or computer forum, some technicians give some advice that convertGPT to MBR with l2r.vn, which is run by program code. The specific steps arefollowing below:
Enter system installing interface by using Win 7 disc or USB hard drive boot.and then press “Shift”+”F10” to open the command prompt.
Input “l2r.vn” (do not input quotation mark, the following as well), and thenpress “Enter”to enter operating interface.
Input “list disk”: to check hard disk properties. Pay more attention to capacityof hard disk to select. Usually, disk 0 is hard disk, and disk 1 is the usbdirve where wins 7 install.
Input “select disk 0”: to select disk 0 as the disk that is operating.
Input “clean”: to clean up current hard disk’s partition.
Input “convert mbr”: to convert GPT into MBR.
Input “create partition primary size = xxx”: to create the size of primarypartition.
Input “format fs = ntfs quick”: to format disk to NTFS quickly.
Input “exit”: to finish operating.
Input “exit”: to shut down the command prompt.
After finishing operating, shut down the command prompt and install windows system oncomputer in normal way. The steps seems be concise, but the greatest shortage isthat all data and files will be clean up. If you don’t have backup files in GPTdisk, you will be crying and anxious for that. And if you don’t have someprofessional knowledge about program, this way is not recommended.
To some users who is a lack of computer professional knowledge, it is a good way thatconvert GPT to MBR with a third-party software. Of many kinds of third-partysoftware, AOMEI Partition Assistant is a not bad tool to help user to convert disk.It’s the greatest strengthen is to convert disk from GPT to MBR without dataloss.
How? With the help of AOMEI Partition Assistant Professional Edition, it is easy to do. Because AOMEI Partition Assistant Professional Edition has a powerful featurenamed “Convert GPT to MBR or MBR toGPT”. Step by Step Guide to convert GPT to MBR:
Step 1. Download, install,and launch AOMEI Partition Assistant. (see picture, below)
Step 2. Select the disk we want to convert, right-click and select “Convertto MBR Disk”.
Click “OK” in the pop-up window:
Back to the main menu, we can see the pending operations andclick “Apply” to commit the changes.
Wasn”t this process a piece of cake? With this powerful partition converter, we can optimize our partition easily. We can convert primary to logical partition,convert FAT/FAT 32 to NTFS, migrate OS to SDD and so on. We can even make a portableWindows 8 by using the function of “Windows To Go Creator”. What’s a powerful disk partition converter it is!