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1. Windows 10 format usb drive only sees 200mb for mac#
2. Windows 10 format usb drive only sees 200mb mac os x#
3. Windows 10 format usb drive only sees 200mb install#
4. Windows 10 format usb drive only sees 200mb update#
5. Windows 10 format usb drive only sees 200mb pro#

You now have a mac bootable USB drive that has a windows partition that is readable and writable by both macs and windows. Im still only seeing windows show transfer rates of 70 MBps at most between the 2 devices. That translates to 640 MBps (megabytes per second)ten times faster than USB 2.0 (aka Hi-Speed USB). I like to do a Disk Utility repair on the HFS+ partition following the restore. USB 3.0 (also known as SuperSpeed USB) has a maximum bandwidth rate of 5 gbps (gigabits per second). Restore (using Disk Utility) your prebuilt minimal OSX to the HFS+ partition.ĥ. You are now back to having two partitions.Ĥ.

Plug the drive into a Mac, fire up Disk Utility, click on the USB drive, select partition tab, select the xxx partition and press the "delete" key. Plug the drive into the windows machine and agree to it formatting the drive (200 MB only for some reason) and label it something odd (I use xxx)ģ. Partition the USB drive with GUID partition table first partition Fat32 (or exFat) and the second HFS+ (8GB minimum to fit OSX)Ģ. Here's the deal.Įquipment: a USB drive of 16 GB larger (try to find one that is fast too), a drive or partition with a minimal OSX build or your liking (10.6.7 for me was 7.2 GB), a running mac, a windows (virtual) machine (I used parallels 5 with Windows 7)ġ. the output (see the example output above), then that is your 8GB USB flash drive. I finally got it done and I don't know why it works, but it does. I reformatted the flash drive to its original FAT32 format as follows. Two partitions one bootable mac partition and one that can be read and written by both macs and windows machines. I did not test this with a hard drive, with a different bus than USB, or under Windows Vista, but I assume these cases follow the same behavior.

Windows 10 format usb drive only sees 200mb pro#

I tested this with a USB flash drive under Windows 7 Pro and under XP Pro, and both only recognized the FAT32 volume when it was the first one. If you set the HFS+ partition as the first one, Windows won't be able to see the FAT32 partition and will tell you that the disk has to be formatted. To be able to use it under Windows, you also have to make sure the partitioning scheme is set to Master Boot Record (MBR). To create an MBR, ersase the USB drive on OS X.

Windows 10 format usb drive only sees 200mb mac os x#

If you ever want to divide a drive into two partitions, one formatted as Mac OS Extended (HFS+) and the other as FAT32, and to be able to access the FAT32 partition from Mac OS X and Windows, just make sure you set the FAT32 partition as the first one on the drive when you partition it with Disk Utility. The main reason why Windows can’t access more than 200MB and can’t format the whole drive is because, if you format the USB drive with default settings on OS X, no MBR is created. Another option, for those who use both Windows and Mac OS regularly, is to partition your hard drive and have a portion of the drive formatted for each OS.This may be evident to some people, but I was a little surprised that my first attempt at it failed. As Goja pointed out, you will need to use BootICE (version 1.2.0.1, not the most recent) to set the desired FAT32 as accessible. reboot to macOS Try to format 'dummy partition' to HFS wit 'Disk Utility.app' Step 5 failed due to the size of EFI partition smaller. It will label the first partition (the 200MB EFI partition) as 'Multiboot' - as I and other posters continue to repeat, Windows only mounts the first partition on an external drive. create a dummy partition to hold the space under Windows. resize the NTFS main partition under Windows. There are tools available to use NTFS on a Mac (Fuse) or HFS on PC (HFSExplorer). HFS can only be formatted under macOS, so my steps are: run rufus to create a Windows to Go gtp drive. Windows will not detect this file system without a third party utility. Only use this option if the drive will only be used in Mac OS.

Windows 10 format usb drive only sees 200mb for mac#

Mac OS Extended is the native solution for Mac users and has the max file size of any of them.

Windows 10 format usb drive only sees 200mb install#

It has a much larger max file size but is read-only on Mac OS X (unless you install a third party NTFS read/write utility).

Windows 10 format usb drive only sees 200mb update#

Older operating systems might require an update to properly read and write to a USB drive with an exFAT file system. It doesn’t have the 4GB file size limit and it’s compatible with most Windows and Mac operating systems.

When formatting your drive, it’s important to understand the different formatting options available for your ideal use.