During reinstall of windows 7 I arrived at the following statement “Windows cannot be installed to this disk. Disk is of th

john_72

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Nov 17, 2012
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During reinstall of windows 7 I arrived at the following statement “Windows cannot be installed to this disk. Disk is of the GPT partition style”. Does this mean Windows 7 only installs with MBR system or that I should starting in bios and not be using bios and not UEFI. How do I get beyond this point. Note that I am trying to install windows on a disk previously occupied by Ubuntu 14.04.2. My ultimate goal is to partition my disk (1000 GB) into three approximately equal parts; one with windows 7, one with windows 10 and one with Ubuntu 14.04.3. Is this reasonable once I understand the ins and outs of bios vs UEFI, MBR vs GPT, FAT32 vs NTFS and what an EFI System partition is?
 

giantbucket

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GPT has nothing to do with NTFS.

GPT is about how partitions are laid out. it's only really useful for drives above 2TB and/or for drives in which you want to have a LOT of partitions.

for 1TB drives that only have 3 OSes, MBR (master boot record) is fine. i'd reformat and "clean up" the drive to make it an MBR drive, and set up your three primary partitions on it first. heck, maybe even use GParted for that task.
 

TbsToy

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Oct 19, 2015
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No, ya can't install W7 on a GPT partitioned drive, at least not very easily and there really isn't any reason to do so. Set your BIOS to legacy, not UEFI, and reset the drive to MBR. & 7 should install. 8/8.1/10 will install under GPT and a UEFI BIOS.
Have fun.
W.P.
 

TbsToy

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Uhhhh, incomplete answer. Use the NTFS file system and the MBR partition type and use a drive of 2 TBs or less. Somewhere as ya go along the drive should be fresh formatted, as you will see. Add partitions after ya have your install completed.
W.P.