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How to Fix Windows Was Unable to Complete the Format Error

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2016-03-22 09:18:17 Posted by Barbie to Manage Partition

What results in Windows was unable to complete the format error and do you know how to fix it? When plug in USB drive, pen drive, SD card but the computer will not allow you to format the device, instead showing the error message. This page gives the solution to troubleshoot format problem under Windows platform.

How does "Windows was unable to complete the format" come?

"I have a 128 GB USB flash drive and it is definitely workable before I plug it in my working computer. Now I got a problem. The computer won't allow me to format it, and sends an error message showing as Windows was unable to complete the format. It's awful to see the drive becoming inaccessible and can't be formatted. I really need an FAT 32 carrier instead of NTFS. Would you please help?"

People use USB flash drives, pen drives or memory cards with the purpose to transfer and backup useful data and files. They're portable, convenient and functional which can be applied to most digital devices. Usually, your intermediate storage device has been used on various computers, cell phones, MP3 or MP4 players, digital cameras, by which the carriers are prone to be infected with disgusting viruses. And that's one of the major causes for Windows not being able to format it.

Apart from the likelihood of being infected, there are some other obvious factors that would result in such an error. For an instance, your storage devices have bad sectors and the computer can't access the part, or perhaps they have been physically broken without your notice. In these cases, surely you are unable to do the operation on them.

Solutions to troubleshoot format problem of hard drive, partitions, USB drive, pen drive, memory cards (SD/SDHC/SDXC)

Except the storage devices was not physically damaged by dropping onto the hard ground, in the water or fire, then the following solutions can be applied to solve "Windows was unable to complete the format" issue.

Solution 1. check if the drive was set as write protected

Have you also encountered the problem of "the disk is write protected, remove the write-protection or use another disk"? That's because your drive has been set as write protected. Since the format operation is relevant to the writing process, you need undo the write protection setting before formatting it.

Solution 2. Ask help for a free third-party disk management software

If your problem is not the mentioned one above, we suggest you try EaseUS Partition Master Free Edition. This free partition manager can check and repair bad sectors, and allows you to perform partition recovery if there is some data loss. Once the software detects the storage device, make sure backup the important data on it before formatting.

How to format flash drives, memory cards, hard disks, partitions with EaseUS Partition Master when Windows won't allow to format?

Step 1. Launch EaseUS Partition Master. Right click the partition you want to format and choose "Format partition".

format partition with EaseUS Partition Master

Step 2. A mini window pops out, on which you can edit the partition label and choose a file system like NTFS, FAT32, EXT2, EXT3...

edit partition information when choose to format

Employing a professional third-party disk or partition management utility is the best alternative solution to correct "Windows was unable to complete the format" error, so EaseUS Partition Master should be the prior choice if you need to fix the critical issue happened to any portable storage devices and computer hard drives, and fix disk partition not recognized by Windows 10 as well.