Fix Windows was unable to complete the format

If you are trying to format SD card or USB drive then it’s possible you may face the error “Windowsはフォーマットを完了できませんでした。” There are many possible explanations as to why you’re facing this error such as bad sectors, storage device damage, disk write protection, virus or malware infection, etc. Another major issue regarding formatting USB drive or SD card seems to be because Windows cannot read the FAT partition table. The problem may occur when the following conditions are true:

• The file system on the disk uses 2048 bytes per sector.
• The disk which you’re trying to format is already using a FAT file system.
• You have used another Operating system (other than Microsoft such as Linux) to format the SD card or USB drive.

In this case, there are various solutions to fiThereessage; what may work for one user doesn’t necessary. What will work for another as these fixes depend on user system configuration and environment. So without wasting any time let’s see how to actually Fix Windows was unable to complete the format error message with the below-listed troubleshooting steps.

Fix Windows was unable to complete the format

何か問題が発生した場合に備えて、必ず復元ポイントを作成してください。

Method 1: Check if your SD card or USB drive has physical damage

Try to use the SD card or USB drive with another PC and see if you’re able to. Next, insert another working SD card or USB drive into the same slot in order to verify that the slot is not damaged. Now once you have removed this possible explanation for the error message we can continue with our troubleshooting.

Method 2: Make sure the USB drive or SD card is not Write Protected

If your USB drive or SD card is write protected then you won’t be able to delete files or folder on the drive, not only this but you also won’t able to format it. In order to fix this issue, you need to switch Tourity lock to Unlock position on the disk in order to remove write protection.

Method 3: todrive using Windows Disk Management

1. Windows キー + R を押して、次のように入力します。 diskmgmt.mscと Enterキーを押して開きます ディスク管理。

2. If you’re not able to access disk management via above method then press Windows Key + X then select コントロールパネル。

3。 タイプ 管理 in the Control Panel search and select 管理ツール。

4. Once inside Administrative Tools, double click on コンピュータマネジメント。

5. Now from the left-hand menu, select ディスク管理。

6. Find your SD card or USB drive then right-click on it and select フォーマット。

7. Follow-on-screen option and make sure to uncheck the Quick Format オプションを選択します。

This should help you to resolve Windows was unable to complete the fat issue but if to not able to format the drive then continue with the next method.

Method 4: Disable Write Protection in Registry

1. Windows キー + R を押して、次のように入力します。 regeditを Enterキーを押します。

2. 次のレジストリ キーに移動します。

HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlStorageDevicePolicies

注： If you can’t locate the StorageDevicePolicies key then you need select Control key then right-click on it and select 新規>キー. Name the key as StorageDevicePolicies.

3. Find the registry key ライトプロテクト under storageManagement.

注： If you are not able to find the above DWORD then you need to create one. Select StorageDevicePolicies key then right-click on it and select 新しい > DWORD (32 ビット) 値. Name the key as WriteProtect.

4。 ダブルクリック WriteProtect key および set it’s value to 0 in order to disable Write Protection.

5. PC を再起動して変更を保存します。

6. Again try to format your device and see if you’re able to Fix Windows was unable to complete the format error.

Method 5: Format using Command Prompt

1. Windows キー + X を押して、 コマンドプロンプト（管理者）

2. Now type the following command and hit Enter after each one:

DISKPART
リストディスク

3. Select your disk from the list and then type the command:

ディスクの選択（ディスク番号）

注： For example, if you have disk 2 as your SD card or USB drive then the command will be: select disk 2

4. Again type the following command and hit Enter after each one:

プライマリパーティションを作成
フォーマット fs = FAT32
終了する

注： You may receive the following message:

The format cannot run because the volume is in use by another process. The format may run if this volume is dismounted first. ALL OPENED HANDLES TO THIS VOLUME WOULD THEN BE INVALID.
Would you like to force a dismount on this volume? (Y/N)

Type Y and hit Enter, this would format the drive and fix the error “Windows was unable to complete the format.”

5. Your SD card or USB drive has been formatted, and it is ready to use.

Method 6: Use SD Formatter

 

Note: It deletes all the data, so make sure you backup your SD card or USB drive before continuing.

1. Download SD Formatter from here.

2. Double-click the download file to install the application.

3. Open the application from desktop shortcut then selects your ドライブ名 from the Drive drop-down menu.

4. Now, under Formatting options, select 上書きフォーマット オプションを選択します。

5. Click Yes to confirm pop up message which says “Formatting will erase all data on this card. Do you want to continue?”

6. You will see the SD Card Formatter window, which will show you the status of Formatting your SD card.

8. Completely formatting a USB drive or SD card can take some type, so be patient while the above process continues.

9.After the format is complete, remove your SD card and re-insert it.

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