Question Windows 10 Disk Management Refuses To Let Me Create Four Primary Partitions On USB. Why?

catboy

Member
Oct 18, 2013
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I am using Windows 10 Disk Management to try to create 4 different primary partitions on a USB drive.

It always lets me create the first three partitions.

But then when I go to create the fourth primary partition, by creating a new simple volume in the exact same way as I did the first three, this is what always happens:

Disk Management creates the fourth volume to be a logical drive, instead of a fourth primary partition which is what I want.

Before making this thread, I tried to search google for solutions to this problem.

And I also learned that four primary partitions is the maximum a disk can have. But I only have three, not four, so it should work to give me four, right?

Google told me to use the command prompt as an admin to solve this problem.

But that didn't help.

When using the command prompt, though, it showed me that Disk Management actually always creates two things when I tell it to make the fourth new simple volume (which I want to be created as my 4th primary partition):

1) it creates a "partition 0" with a type of "extended." And
2) it also creates the fourth visible partition as "partition 4" with a type of "logical."

Can you please explain why exactly is Disk Management doing this?

How do I make it create a 4th primary partition - in the exact same way as it made this first three with no problem - and stop creating these two unwanted partition types?
 

tcsenter

Lifer
Sep 7, 2001
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Try one of the free (or trial) partition tools/utilities. e.g. AOMEI Partition Assistant, EaseUS Partition Master, GParted
 

catboy

Member
Oct 18, 2013
85
9
71
Try one of the free (or trial) partition tools/utilities. e.g. AOMEI Partition Assistant, EaseUS Partition Master, GParted
Thanks for the tip.

I tried AOMEI Partition Assistant and it worked instantly to make the 4th primary partition on my USB stick.

I wonder why Windows 10 kept failing at doing that.

At least my USB problem is solved now though, so thank you.
 
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