How Do I Fix "Windows Was Unable To Complete The Format" Error

This page explains the causes of "Windows was unable to complete the format" error and covers 5 practical ways khổng lồ help all Windows users lớn get rid of this error efficiently from USB flash drive sầu, SD thẻ, external hard drive sầu, etc., devices. If you were unable to lớn format the USB or SD card, relax and follow guidelines here lớn complete the format with ease now. 

PAGE CONTENT:Causes of Windows Unable lớn Complete Format Error7 Fixes for Windows Was Unable lớn Complete the Format ErrorBonus Tip: Recover Lost Data after Completing Windows Format

Error: Windows Was Unable to Complete the Format

Formatting a Micro SD card, USB flash drive, pen drive sầu, hard drive or SSD is a quiông xã process for ordinary users to change the device file system & restore its full capathành phố, và it"s not strange to most of us. But sometimes, you might fail khổng lồ complete the format on a Windows computer as the cases shown below: 


Case 1 - Windows cannot complete format on USB

"Yesterday, Windows asked me lớn 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 khổng lồ reformat it lớn FAT32. How can I fix this problem?"

Case 2 - Windows was unable khổng lồ complete the format on the SD card

"I have a problem with my micro SD thẻ. I can"t format it. I receive sầu an error "Windows was unable to complete the format", what can I do?"

So what is unable to complete the format? "Windows was unable to complete the format" is an error message that pops up in a window lớn warn users the Windows operating system cannot exedễ thương the formatting operation on your target devices so as lớn change the file system, setting the problematic device khổng lồ usable again.

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Stay calm when you are unable khổng lồ complete formatting SD thẻ, USB, external hard drive sầu, or other devices on Windows PC. You should first kiểm tra the causes of this error. Then you can follow the respective sầu fix và refer to the guide steps remove sầu the "Windows was unable to lớn complete the format" issue from your device, completing the format.

Causes of Windows Unable khổng lồ Complete Format Error

There are many causes that may prevent Windows from completing the format process on your devices. Here is a danh sách of the main reasons that explain why Windows is unable to lớn format the USB, SD card, or external hard drive, etc., devices:

#1. The device contains the tệp tin system error


When a storage device displays as RAW or contains an unsupported tệp tin system such as Linux Ext2/3/4, Windows won"t be able lớn directly format the device by using File Explorer or Disk Management. To fix this error, you will need a third-buổi tiệc nhỏ formatting tool for help. 

#2. Presence of bad sectors on USB, SD

When a storage device contains a certain number of bad sectors, you won"t be able to lớn format it using Windows built-in tools. To make your device accessible again và complete the format on a USB/SD card, you can run disk error checking & a bad sector repair tool to clear the errors on your device.

#3. Virus or malware infection

When your storage device is infected by a virus or malware, you can neither access the saved data nor format the device in a normal way. You need to lớn clear the virut at first & then complete the formatting process.

#4.The device is locked or write-protected by third-tiệc ngọt software

If your USB or SD thẻ gets locked or write-protected by third-tiệc nhỏ software, you cannot format the device either. The only way out is to lớn remove sầu the write protection first, and then finish formatting your SD, or USB drive sầu.

#5. Physical damage 

When your storage device is physically damaged, you can bởi vì nothing to lớn it. Either taking it to lớn a local manual repair center or purchasing a new one lớn replace the damaged device is a good way out.

7 Fixes for "Windows Was Unable lớn Complete the Format" Error

In part, we will show you how to lớn fix the "Windows was unable lớn complete the format" error in 6+ practical ways. As the causes are different, the solutions may also be different. Cheông xã & follow the right solution lớn get rid of this error with ease now.

Method 1. Use Partition Master to lớn Fix Windows Unable to Complete Format Error

Applies to: Fix "Windows was unable to lớn complete the format" caused by a file system error or unsupported file system on USB, SD card, hard drive sầu, etc.

If your storage devices cannot be formatted due lớn tệp tin system error, such as USB shows RAW in Disk Management, Partition Master can effectively format your device khổng lồ a Windows supported file system such as NTFS, FAT32, or exFAT, etc., with ease.

Follow khổng lồ see how khổng lồ fix tệp tin system errors on your SD, or USB drive sầu using this software và complete the formatting process in only a few simple clicks:

Step 1. Run Partition Master, right-clichồng the hard drive partition you intover lớn format và choose "Format".


Step 2. In the new window, set the Partition label, File system (NTFS/FAT32/EXT2/EXT3), and Cluster size for the partition to be formatted, then click "OK".



Step 4. Cliông chồng the "Exedễ thương Operation" button in the top-left corner to review the changes, then clichồng "Apply" lớn start formatting the partition on your hard drive.


Method 2. Fix "Windows Was Unable to Format" Error Using Diskpart Command

Applies to: Resolve Windows unable lớn format USB, SD, or other device error due to lớn tệp tin system or bad sector issue. 

When you failed to format USB, SD card, or other storage devices using Windows tệp tin explorer, the Diskpart formatting commvà can also help you complete the format.

Here are the steps:

Step 1. Right-clicking on Windows icon, type command prompt in Search, right-cliông xã on Comm& Prompt and select "Run as administrator".

Step 2. Type diskpart in Comm& Prompt & hit Enter.

Step 3. Hit Enter each time when you type below command lines in DiskPart to quiông chồng format hard drive:

menu diskselect disk 2 (Replace 2 with your disk number)list volumeselect volume 10 (Replace 10 with the volume number of the device that you want to format)format fs=ntfs quick (If you need to lớn format a storage device to FAT32 or other tệp tin systems, replace NTFS with FAT32exFAT, etc.)

Step 4. Type exit and hit Enter khổng lồ cthua trận the program when DiskPart reports it has successfully formatted the volume.


Method 3. Remove "Windows Unable lớn Format" Error on RAW Device in Disk Management

Applies to: Get rid of "Windows was unable lớn complete the format" error caused by RAW file system error on USB, SD thẻ, hard drive sầu, etc.

When your storage device becomes RAW và Windows warns that it was unable to lớn complete the format, you may try Windows Disk Management khổng lồ complete the formatting:

Step 1. Connect your device lớn your PC if you want to format a removable device.

Step 2. Right-cliông chồng on This PC and cliông xã "Manage", and select "Disk Management".

Step 3. Locate and right-cliông xã on your USB flash drive or external hard drive, and then select "Format".

Step 4. Set the file system of your USB, SD card, or hard drive lớn NTFS or FAT32, tick "Quichồng Format" & click "OK" to lớn confirm.


Method 4. Clear Virus and Complete the Format on Windows

Applies to: Resolve "Windows was unable lớn complete the format" issue on a locked device due lớn virut or malware infection.

If your device is locked or infected by virut or unknown malware, Windows computer won"t be able to format your USB, SD thẻ, or other storage devices. The best way khổng lồ get rid of this issue is khổng lồ run virut cleaning software & unlochồng the device.

Step 1. Connect your external storage device lượt thích USB or SD thẻ khổng lồ your PC.

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Step 2. Run a virut cleaner, malware removal tool, or antivirut software on your PC, select the target device khổng lồ clear the existing virut, malware.

Step 3. After this, you can reformat the device again using Windows File Explorer or the former three formatting tools.

You can also remove virus without antivi khuẩn by using Windows Defender and enable the real-time virus protection feature. It also works to lớn protect your device và data against viruses and malware infection. 

Method 5. Remove Write Protection from Device & Complete the Format

Applies to: Remove write protection & enable Windows khổng lồ complete the format on USB, SD card, external hard drive, etc., devices.

If your target device is locked or write-protected by a password or third-party software, Windows cannot directly format your storage device. You will need to unloông xã the device first, and then complete the format:

First. Remove Device Write Protection - 3 Ways

#1. Unlock USB/SD card

Step 1. Connect your device to lớn your PC.

Step 2. Remove the switch of your USB or SD card to the OFF side.


Then you can retry to format the device on Windows using File Explorer or other devices.

#2. Remove sầu write protection from USB/SD

Here is a write protection removal tool named Tools M for you khổng lồ apply và directly remove the write protection from your device:

If you are not professional in computing management và not familiar with command lines, don"t worry. R&D team has promoted a fresh kit for helping you resolve the write-protection issue on your hard drive sầu, external hard drive sầu, USB or SD card, etc., devices. Tools M is a practical computer fixing tool that is safe and light-weighted. It"s a perfect alternative to the comm& line. 

Use this one-click tool khổng lồ solve the write-protection issues on your own:

Step 1:  DOWNLOAD và install Tools M for không tính tiền.

Step 2: Run Tools M on your PC, choose the "Write Protection" mode.

Step 3: Select the device which is now "Write-Protected" and click "Disable" to lớn remove sầu the protection.


#3. Unlock device using a password or third-buổi tiệc nhỏ software

If your storage device is write-protected by using a password or third-tiệc ngọt software, you will need lớn reuse the password or the software khổng lồ unloông xã your SD, USB, etc., devices.

Next. Format the Device - Complete Windows Formatting

Now, you can reformat the device with Windows File Explorer, Disk Management, Diskpart comm&, or Partition Master.

Step 1. Connect USB, or SD card that you want to format to your PC & open up Windows Explorer.

Step 2. Right-cliông xã on the connected device và select "Format".

Step 3. On the format window, select the desired file system - NTFS for hard drive sầu partition, FAT32 for 32GB SD/USB, và exFAT for 64GB or bigger SD/USB.

Step 4. Tiông xã "Quiông xã format" và cliông chồng "Start".


Method 6. Cheông chồng & Fix Disk Errors that Prsự kiện Windows from Completing the Format

Applies to: Resolve "Windows unable lớn format" device error due khổng lồ disk error. 

Step 1. Open File Explorer, connect your device lớn PC và right-cliông xã on the problematic device, select "Properties".

Step 2. Under the Tools tab, cliông chồng the Check button under "Error checking".


Step 3. Next, you can choose lớn Scan drive if wanted or Repair drive if errors were found.

Wait for the process to finish.

Step 4. Now, you can right-click on your device và complete the format using Windows File Explorer.

Method 7. Repair Bad Sector that Disallows Windows to lớn Format Storage Device

Applies to: Fix and repair soft bad sectors that stops Windows from formatting device.

When a storage device contains a bit few soft bad sectors, you can"t format it using the Windows formatting tool. You can either apply Partition Master with its File System Checker khổng lồ repair bad sectors or run CMD command lớn repair soft bad sector first and then complete the format: