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Fix Windows was Unable to Complete the Format Error

Posted on Jan 15, 2018 by Tracy King to Partition Master

Summary:
This article shows you how to fix Windows was unable to complete the format error step by step in two popular ways. Try them to format your Micro SD card, USB flash drive, hard drive, SSD, etc whenever you need.

Reasons and solutions for Windows was unable to complete the format error

"Yesterday, Windows asked me to format my USB flash drive when I connected it to the computer. But I just got an error message 'Windows was unable to complete the format' when I tried to reformat it to FAT32. How can I fix this problem?"
"I have a problem with my micro SD card. I can't format it. I receive an error 'Windows was unable to complete the format', what can I do?"

Windows was unable to complete the format error

Formatting a Micro SD card, USB flash drive, pen drive, hard drive or SSD is a quite easy process and it’s not strange to most of us. But sometimes you might face the 'Windows was unable to complete the format' error and another similar error 'the format did not complete successfully' caused by virus infection, bad sectors, storage device damage, disk write protection, etc. In this article, we will show you, step by step, how to fix 'Windows was unable to complete the format' error in two popular ways. 

Fix Windows was unable to complete the format error with Windows Disk Management

When you get 'Windows was unable to complete the format' error message, you can first try to fix this problem with Windows Disk Management tool. All you need to do is to follow this path: 

Step 1. Right-click the "My Computer" icon on the desktop and hit the "Manage" option. Click on "Disk management" to open Windows Disk Management. 
Step 2. Select the Micro SD card, USB or flash drive that you need to format, right-click and hit "Format". If there are any partitions on the drive, you should delete them all at first. 

Fix Windows was unable to complete the format error with EaseUS partition tool

If the first method does not work as expected for you, then try to fix 'Windows was unable to complete the format' error with third-party software, EaseUS partition tool. It is an easy-to-use yet powerful application that can easily deal with any issue that you might experience when trying to format a USB drive. Here is the detailed guide. 

Step 1. Insert the SD card, USB, hard drive or some other device you want to format, launch EaseUS partition tool, right-click the device and choose "Format partition".

Choose Format partition option to fix Windows was unable to complete the format error

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

Edit the file system to fix Windows was unable to complete the format error

Step 3. Click "Apply" to confirm to format the SD card, USB flash drive, hard drive, SSD or other storage devices.