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Run AOMEI Partition Assistant Standard to access its main interface, right click the USB drive and choose 'Format Partition'. In the subsequent window, choose Ext2 from the given file systems and click 'Next'. Note: if you want to format USB to Ext4, just choose it from the options. Back to the main interface, click 'Apply'. Ext4 partition recovery – restore lost / deleted ext4 partitions; Recover lost or deleted data from ext4 partition; How to read ext4 in Windows？ Connect the hard drive or USB drive that contains ext4 partition to your computer which has boot to Windows. Install and launch DiskGenius. Then you can view all disks and partitions on the computer.

Summary :

USB drive becomes more and more popular due to its portability. People like to save frequently used data in their USB drive and carry it with them everywhere they go. Yet, there is a problem that has bothered many people: Windows was unable to format USB drive. How can you fix this error?

It is easy to carry a USB drive around, so a lot of people choose to save their personal data or frequently used business data in a USB drive. When you don’t need the data saved on USB or when you are not satisfied with the file system of USB drive, you may format the drive. But the problem is: some people said they were unable to format USB. This is an issue happened to many USB drive users. But don’t worry; I’ll show you how to fix the problem in different ways.

How to Fix Unable to Format USB Error

You are likely to see the following error messages that indicate the format did not complete successfully:

• Windows was unable to complete the format
• Cannot format, USB drive write protected

Please make sure your USB drive is not write-protected and then follow the methods below to solve the problem. Before starting to fix the unable to format pen drive error, you should backup data in the USB drive/pen drive in case of any unexpected accidents.

Please note that all the following steps are completed in Windows 10.

Method 1: Check the Drive for Error

Windows provides you with a feature to check any drives for errors. It scans the drive, trying to find the possible errors and try to fix it automatically.

1. Connect the drive to your computer and open File Explore (previously called Windows Explorer).
2. Navigate to your USB drive and right click on it.
3. Choose Properties from the menu.
4. Shift to Tools tab from General tab.
5. Click Scan and repair drive and wait.
6. Once the process is done, please try to format your drive by using Disk Management or a USB format tool.

Method 2: Format Drive in Command Prompt

If the first method doesn't work, you can try to use Command Prompt tool to format your USB drive.

How to format pen drive in cmd:

1. The first step is also connecting your drive to the computer.
2. Type cmd into the search box on taskbar.
3. Right click on Command Prompt from the search result.
4. Choose Run as administrator from the context menu.
5. Type diskpart and press Enter.
6. Type list disk and press Enter.
7. Type select disk * (* represents the disk number of your USB drive) and press Enter.
8. Type clean and press Enter.
9. Wait for the process to complete.

Method 3: Format with MiniTool Partition Wizard

You can download MiniTool Partition Wizard as the pen drive format software. Then, install the software properly and use the Format Partition function to format your drive. Still, you need to connect the target USB drive to the computer.

1. Run MiniTool Partition Wizard and choose Launch Application.
2. Select the USB drive partition in the right pane.
3. Choose Partition from menu bar.
4. Select Format from the submenu.
5. Confirm the partition label, file system and cluster size.
6. Click on the OK button.
7. Press Apply in the upper left corner.
8. Choose Yes in the prompt window to allow changes.
9. Wait for the formatting process.

Besides, you can try to fix the unable to format USB error by updating the USB Driver. You’ll need MiniTool Power Data Recovery to help you recover data when you encounter memory card not formatted error.

Position: How Tos - Partition Management - How To Access Ext4 Partition in Windows 10/8/7?

Summary

DiskGenius - Powerful Linux reader for Windows provides full access to EXT2, EXT3, and EXT4 partitions.

Table of Contents:

If your computer is dual-boot with Linux and Windows, you are probably very clear that default file systems used in Windows and Linux are different. Partitions used in Windows are formatted as FAT32 or NTFS, while they are formatted as EXT4, EXT3 or EXT2 in Linux. Linux system is able to access Windows partition, but Windows cannot access Linux partitions.

Sometimes we may need to access data of Linux partition from Windows, but Windows does not support Linux file system. In this case, we'll have to reboot computer to Linux and access desired data. It would be better if we can read and write Linux EXT4/3/2 partition from Windows. The rest part of the instruction is going to explain how to create, format, delete, write, resize and recover EXT4 partition from Windows 10/8/7.

Linux file system types

File system is the way how files are stored and organized on storage device. Windows and Linux use different file system formats, and the most widely used file system in Linux is EXT4, EXT3 and EXT2. EXT means Extended Filesystem and it was mainly introduced for MINIX. EXT2 (the second extended version) was improved based on the original version, and EXT3 improves performance over EXT2. EXT4 is current the default file system of Linux and it improves performance and reliability and adds additional features over EXT3.

EXT3 VS EXT4

Ext3 became available since the year 2001 together with Linux Kernel 2.4.15 and it is a logical extension of Ext2. Ext3 can be converted to Ext3 directly without backup / restore. Ext3 file system was designed with the ability to journal write to the files system, which allows quite fast crash recovery time. It uses indirect block mapping scheme, which makes it efficient to manage small files. However, it does not work effectively when dealing with large files especially when carrying out deletion task, for the mapping retains an entry for each single block and large file usually has many blocks.

Ext4 was available in 2008 with Linux kernel 2.6.1.19. It is a progressive revision of Ext3 file system and overcomes limitations on Ext3. Ext4 works similarly to Ext3, but it becomes able to store large files much more efficiently than ext3 due to the extend based layout. In Ext4, you are allowed to disable the journaling feature. Ext4 is the default file system in most modern Linux distributions

EXT4 VS NTFS

NTFS (New Technology File System) is the default file system of hard drives used under Windows system since Windows XP. It has complicated structure and can be regarded as a journaling file system, as it retains records of all operations on the device. This feature is capable of detecting errors and restoring from them. NTFS is primarily used on hard drives and external hard drive even though USB media can still be formatted to NTFS.

EXT4, the accessor to Ext3, is the most used filesystem type on Linux system for the moment. It is best suited for hard drives, but it can also be used on removable disks. However, it is not supported by Windows system, thus Ext4 partition is not visible under Windows system.

Linux reader for Windows 10

Since Windows system does not support reading or writing any Linux partition, we need to use third-party Linux reader software to access Linux drives from Windows. DiskGenius Professional Edition is an efficient tool which enables full access to Linux Ext4, Ext3 or Ext2 storage devices under Windows operating system. Just connect your hard drive with Linux partitions to computer and launch DiskGenius and you can easily access and manage ext4 partitions in Windows 10/8/7/XP. Main features related to Ext4/3/2 drive provided by DiskGenius:

Partition management: Create, delete, format, resize, clone, image, hide Linux-formatted partition. Support LVM (Logical Volume Management).

Disk management: Check and repair bad sectors, clone & image disk, wipe disk, convert GPT/MBR, convert dynamic disk to basic, etc.

Data recovery: Recover deleted or lost data from ext4 partition, restore lost Linux partition.

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Data backup: back up an ext4 partition to an image file, supporting incremental backup.

Supported file systems: Read/write: Ext2, Ext3, Ext4, NTFS, exFAT, FAT32, FAT16, FAT12.

Guide #1: Convert NTFS to EXT4 in Windows

The process of converting NTFS to EXT4 will format the partition so that file system can be changed. Due to partition formatting causes data loss, you need to back up crucial data on the drive before formatting it.

Step 1. Launch DiskGenius, select the NTFS partition you want to change file system and click Format button from toolbar. Also, you can right-click on the partition and select Format Current Partition from context menu.

Step 2. The partition formatting window pops up, and you can choose file system types you need from the dropdown list. Currently, DiskGenius can format partition to NTFS, FAT32, exFAT, EXT2, EXT3 and EXT4 file system.

Step 3. Click Format button and you'll receive a message box asking confirmation. Click Yes to continue and DiskGenius starts to format partition.

Once formatting process completes, the NTFS partition will change to EXT4 file system. Since Windows does not support EXT4 file system, the partition won't be assigned drive letter and it is not visible to Windows system. If you want to access the partition, you can use DiskGenius to complete required tasks.

Guide #2: Create / delete EXT4 partition in Windows 10

DiskGenius is full-featured partition manager which enables you to manage Ext4 partition under Windows. It is quite easy to create an Ext4 partition or format NTFS partition to EXT4.

1. Create EXT4 Linux partition in Windows

Step 1. Launch DiskGenius from your computer, right-click on free disk space and choose Create New Partition, as below:

Step 2. On the Create New Partition widows, you can select partition and file system type, set partition size, set 4K sector alignment, etc. There are around a hundred types of file system available here, just choose the one you need. Then click OK button.

Step 3. Click Save All button from toolbar to save the new partition to partition table. Click Yes when DiskGenius asks whether to format the partition. The Ext4 partition will be created successfully after formatting process finishes.

2. Delete Ext4 partition in Windows

Step 1. Right-click on the Ext4 partition you want to delete and choose Delete Current Partition option.

Step 2. Click Yes when DiskGenius asks confirmation for the deleting operation. Then click Save All button to save changes on partition table.

Guide #3: Read & write EXT4 partition in Windows

Windows partition manager DiskGenius provides full access to Ext4, Ext3 and Ext2 partition. Thus, you can read or write data in Linux partition via DiskGenius in Windows 10/8/7/XP without rebooting computer to Linux system.

1. Read files of Ext4 partition from Windows 10

Install and launch DiskGenius from computer, and you can view all disks and partitions connected to the computer. In the middle area, there are three tabs: Partitions, Files and Sector Editor. Select a disk or partition and click Partitions tab, you can view disk or partition parameters in details, such as partition table type, sector count, SN, adapter type, S.M.A.R.T. information, file system, reserved blocks, volume GUID, etc.

Step 1. Select a partition and click Files tab, you can view files and folders stored on the root directory of the selected partition. Click a file and there will be a thumb preview of the selected files on the lower area, as below:

Step 2. Double-click the file and you can view the file content in its original size. The following screenshot shows DiskGenius is viewing a JPG file.

2. Write data to EXT4 partition

Writing an EXT4 partition includes too many operations, such as, delete data, create folder, modify file, rename data, store new data, etc. DiskGenius has full access to write ext4 partition and it can do all operations related to writing, but in this section, we only explain how to store data to ext4 partition.

Step 1. Select an Ext4 partition to which you want to store new data, and click Files tab.

Step 2. Right-click on the empty area and choose Copy Files To Current Partition.

Step 3. Select files you want to copy to the EXT4 partition and click Open.

Guide #4: Resize EXT4 partition without losing data

Apart from resizing Ext4 partition, DiskGenius is also able to split and extend Ext4 partition without losing data.

Step 1. Right-click on the Ext4 partition you want to change its size and choose Resize Partition.

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Step 2. Set partition capacity you want to move between partitions and click Start button.

As shown in the screenshot below, DiskGenius is going to move 36.53GB disk space from Ext4 partition to the adjacent NTFS partition Local Disk (I:). The disk space spared from the Ext4 partition can be either kept as unallocated or added to other partitions.

Step 3. Click Yes when DiskGenius prompts rest operations to be done, and it will starts resizing partition.

Guide #5: EXT4 data recovery

Ext4 file recovery and partition recovery is now available for the latest version of DiskGenius. It supports recovering deleted files from ext4 partition, retrieving lost data from formatted or corrupt ext4 partition, and restoring lost or deleted ext4 partition. The following instruction will show you how to recover lost or deleted files from ext4 partition.

Step 1. Select the ext4 partition where lost files were stored and click File Recovery button from toolbar. This will open Recover Files window, as below.

Step 2. Select recovery options and file types you need and click Start button. Then DiskGenius starts to search for lost data from selected drive.

There are three options on the file recovery window: Recover Deleted Files, Complete Recovery and Search For Known File Types. The default setting gets all of them selected, which can guarantee the software can find out as many files as possible.

Step 3. Preview files during or after scanning process to check if your files can be recovered correctly.

DiskGenius enables users to preview recoverable files listed in scanning result so that you can make sure whether your files are found or overwritten.

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Step 4. Copy and save files you need to get files recovered.

You can select files and folders you want to recover from file list, right-click on selected data and choose 'Copy To' option. Then you can select a location which is different from the partition being recovered data, for the recovery process is read-only to original device.

These steps above apply to deleted or lost file recovery only, and you need to perform partition recovery if entire partition gets lost due to hard drive partition, hard drive failure, partition deletion, partition table, etc. Partition recovery function searches for lost partitions and restore them to partition table directly.

Conclusion

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With the help of DiskGenius, you can easily and efficiently access and manage Ext4 partition in Windows 10, Windows8 and Windows7. So, reading or writing ext4 Linux partition from Windows is no longer a complicated thing. Fee download DiskGenius and manage ext4 partition in Windows now.

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DiskGenius - Effective tool to access and manage EXT4, EXT3, EXT2 Linux partition in Windows.