By Cherry / Last Updated September 3, 2019

Can’t initialize SSD

When we searched the problem, we find that may users have been trapped by initialize a hard drive SSD. Here we have extracted two cases about the problem “can’t initialize SSD” from forum. If you are trapped by this kind of problems, this article will help you a lot.

Case 1:

“I got an ADATA SU800 256GB 3D-NAND SSD, in disk management it shows up as "unknown" and when i try to initialize it i get an error saying "the system cannot find the file specified" any ideas on how to solve the issue?”

Case 2:

“I installed new SSD in my Windows 7 tower. Then: Computer (Rt. Click)

The situations you need to initialize hard drive/SSD

Actually, there are many situations you need to initialize HDD or SSD. And here we have list the most common situations:

1. When you got a brand new SSD/HDD, you may be asked to initialize the SSD/HDD before using.

2. When your SSD/HDD is not showing up in Windows File Explorer, you need to initialize the SSD/HDD or assign a drive letter to it.

3. When you open Windows Disk Management, the SSD/HDD shown as “Disk Unknown Not Initialized”, you need to initialize the SSD/HDD.

4. When you encounter errors that need to initialize disk to solve such as: “You must initialize a disk before Logical Disk Manager can access it”, “the system cannot find the file specified”, etc.

How to initialize SSD in Windows 10/8/7?

Initializing SSD/HDD will erase all data on the SSD/HDD. If there is any important data on the SSD/HDD, please backup disk with AOMEI Backupper so that you can recover data on the SSD/HDD later.

Windows Disk Management can help users to initialize SSD/HDD:

Connect your SSD/HDD to your Windows 10/8/7. open Disk Management by right-clicking This PC-> Manage-> Disk Management. And you can see your SSD/HDD here. Right-click the SSD/HDD and select Initialize Disk.

However, here you may encounter troubles that cannot initialize SSD/HDD like the cases we mentioned before. Don’t worry, we have prepared better solutions for how to initialize SSD.

Better Solution 1: initialize SSD/HDD with Diskpart commands

Diskpart.exe is a more powerful tool than Disk Management that can help you solve part of problems that Disk Management can’t solve. Here you can follow the commands below to initialize SSD.

Press "WIN+R" and type "cmd" to open the command prompt. Then, type diskpart in the prompt and press Enter. Type the following commands one by one:

list disk (it will list all the disks on your Windows).

select disk (select the disk which you want to initialize).

attributes cleared successfully (to ensure it moves to the next step smoothly).

online disk (if the Disk is “offline”, you need to run this command to online the disk).

convert mbr (or “convert gpt” to change the selected disk to MBR format or GPT format according to your requirements).

Diskpart Initialize SSD

Once you initialized the SSD/HDD and convert the disk into MBR format or GPT format, you can reuse the disk.

Better Solution 2: Initialize SSD/HDD with AOMEI Partition Assistant

If you initialize SSD failed with Windows built-in tool, you can try AOMEI Partition Assistant, a professional software that provides an easier way to initialize SSD/HDD effectively. Here you can learn how to initialize SSD by the following steps:

Try It Free

Step1. Launch AOMEI Partition Assistant (Pro). Select the disk you want to initialize, right-click it. Then, select Initialize Disk in the pop-out menu.

Initialize Disk

Step2. Select to initialize disk to MBR/GPT. ClickOK.


Step3. Click Apply at the tool bar to confirm the operations.


After initializing SSD, you can use the disk normally.

What can AOMEI Partition Assistant do for your SSD?

  • AOMEI Partition Assistant is not only a disk manager that provides you initialize disk, but also a disk partition manager that allows you to create partition, split partition, resize partition, etc. That means after initializing, you can manage partitions’ size on the SSD.

  • The AOMEI Partition Assistant also provides SSD 4K alignment , which can speed up your SSD in a certain way.

  • If you do not want to use the SSD any more, you can also use AOMEI Partition Assistant to secure erase SSD and restore it to its factory settings without hurting its lifespan.


* AOMEI Partition Assistant Server edition can work with Windows Server 2016/2012/2008/2003, etc, if you are server users, you can try Server version .