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No Usable Free Extent Could Be Found: How to Fix it
This error usually occurs on MBR disks or on external drives
4 min. read
Updated onOctober 4, 2023
updated onOctober 4, 2023
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Key notes
Some of our readers encountered the error messageNo usable free extent could be foundwhen they tried to create a partition withDiskpart. This usually happens when you’re working with an MBR disk, an SD card, or a USB external drive but in this guide, we will help you fix the problem.
Why do I get the No usable free extent found error?
There are a few reasons why you can see theNo usable free extent founderror when creating a primary partition:
Now that we know the roots of this issue, let’s apply the solutions below to fix it.
How do I fix theNo usable free extent founderror?
Before getting into more complicated tweaking, let’s crosscheck some quick steps that might solve the problem easier:
If none of these prerequisite measures solved the issue, let’s go to the actual solutions below.
1. Reinstall the USB driver
You may also use adriver update softwarethat does all that automatically using large and updated databases.
2. Set your partition as Logical
The error No usable free extent found may be due to the fact that the disk is in the MBR format and it already has 4 primary partitions, or 3 primary partitions and one extended partition.
That means you can’t create another new primary partition and setting a partition as Logical fixes this problem.
3. Convert the disk from MBR to GPT
For more information, you can read our guide onhow to convert a drive from MBR to GPT.
So, these are the most efficient methods to fix theNo usable free extent founderror. We hope that our solutions helped you and you have created the partition.
Diskpart is a tool but we also recommend our list of thebest partitioning appsthat also have simple interfaces and are easier to use.
If you have any questions or suggestions, don’t hesitate to use the comments section below.
More about the topics:DiskPart
Claudiu Andone
Windows Toubleshooting Expert
Oldtimer in the tech and science press, Claudiu is focused on whatever comes new from Microsoft.
His abrupt interest in computers started when he saw the first Home Computer as a kid. However, his passion for Windows and everything related became obvious when he became a sys admin in a computer science high school.
With 14 years of experience in writing about everything there is to know about science and technology, Claudiu also likes rock music, chilling in the garden, and Star Wars. May the force be with you, always!
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Claudiu Andone
Windows Toubleshooting Expert
Oldtimer in the tech and science press, with 14 years of experience in writing on everything there is to know about science, technology, and Microsoft
