File System is RAW: How to Fix it in Windows 10/8/7?

February 15, 2019

When the file system is RAW, you will be unable to access any data within the drive. So how to fix it accordingly? This page will display two effective ways to repair RAW partition in Windows 10/8/7.

RAW File System

Different from FAT and NTFS file system, RAW file system is not a standard file system and Windows cannot recognize it. It is a common issue that many devices might encounter, including memory card, USB flash drive, or other computer hard drives. When it happens, you are not allowed to access the data inside. Moreover, you might meet some error messages like “You need to format the disk in drive E: before you can use it. Do you want to format it?”, “Drive <number>: \ not accessible. The file or directory is corrupted and unreadable” and more.

What causes the RAW file system?

Generally speaking, the most direct reason for the RAW file system is that the file system cannot be recognized/supported by current operating system. Besides that, there are some other causes for this issue.

> Drive is infected with virus.

> Sudden power outage or failure when the drive is in use.

> There are some bad sectors existing on the drive.

> Incorrect or improper formatting operation.

> File system structure is damaged.

How to fix RAW drive in Windows 10/8/7?

The file system is RAW, how to fix it? Here, we bring two methods you can try to fix this RAW problem in Windows 10/8/7. Before you proceed, you can first run some anti-virus software to check whether the problem can be fixed, if not, please read on.

Way 1. Check bad sectors

Bad sectors are one of the most important reasons for RAW file system, so you had better scan the drive to check whether there are some bad sectors on it. You can turn to AOMEI Partition Assistant Standard, with which you can check RAW partition for errors in easy steps.

Step 1. Download the freeware, install and run it in Windows computer. Right click the RAW partition and go to Advanced>Check Partition.

Check RAW Partition

Step 2. Select the last method to check bad sectors, then click OK.

Check Bad Sectors

Step 3. Tick Quick Check and click Start to begin the checking process.

Start Check Raw Partition

Way 2. Format RAW to NTFS or other recognizable file system

If there are no bad sectors found in the first way, you can directly format the RAW partition to NFTS, FAT32 and other file systems that can be recognized by Windows OS. It is a quick way to fix RAW drive, but it will lead to data loss. So you should use a data recovery tool to get your data back before formatting, and Recoverit Pro is a nice choice.

After that, you can format RAW drive directly via Diskpart in the following steps.

Step 1. Type cmd in the search box, right click the given Command Prompt icon and select Run as administrator.

Step 2. In the Command Prompt window, type the following commands in turn and press Enter after each one.


list volume

select volume 6: replace 6 with your RAW partition number

format fs=ntfs quick

Format RAW Disk CMD

Apart from Diskpart, you can also use AOMEI Partition Assistant Standard to format RAW drive, which is much easier.

Step 1. Run AOMEI Partition Assistant, right click the RAW partition (shown as Unformatted here) and choose Format Partition.

RAW Drive Format Partition

Step 2. In the mini window, choose NTFS or other compatible file system and click OK.

RAW Drive File System

Step 3. Back to the main interface, click Apply>Proceed to format the RAW drive.

RAW Drive Apply

More importantly, you can also use this freeware to fix MBR to solve RAW file system problem.

Final Words

This is all about “file system is RAW, how to fix it”. Besides formatting RAW drive, AOMEI Partition Assistant does well in formatting read only disk, formatting 2TB hard drive to FAT32, formatting corrupted disk, etc. If you upgrade to Professional edition, you can enjoy more advanced features including recovering lost partitions, migrating OS between MBR and GPT disk.