Here at Computer Expert Adelaide, we often get calls from customers who have just installed a new SSD. They turn on their PC, open File Explorer, and panic because the new SSD drive is nowhere to be found.

Their first thought is always that the drive is broken.

But the good news is, this is rarely the case. It is usually a simple software issue that you can fix yourself, not a hardware problem. In this guide, we’ll walk you through the same steps we use to get a new drive showing up and working perfectly.

The Most Common Fix: When Your SSD is “Unknown, Not Initialised”

Nine times out of ten, the reason your new SSD is not showing up is because the disk is not initialised. This is a normal step for any new drive, whether it’s a Crucial SSD or any other brand.

A new drive out of the box is like a blank notebook. Windows can see it’s there, but it doesn’t know how to write on it yet. You need to initialise and format it first. If you see a drive in your system that is marked as “Unknown, Not Initialised”, this is the solution.

Here’s our simple, step-by-step guide on how to fix an SSD not initialising.

How to Initialise Your New SSD

1. Right-click on the Start Menu button and choose “Disk Management” from the list. This is the main tool for managing all your drives.
2. As soon as Disk Management opens, it should automatically detect the new drive and a window will pop up that says “Initialise Disk”. If you’ve been having an ‘ssd not initialised’ issue, this is the window you want to see.
3. It will ask you to choose a partition style. For any modern computer, you should choose GPT. Click OK.
4. Now, look in the bottom panel of Disk Management. You should see your new drive, which will have a black bar and be marked as “Unallocated”. This means the drive is now initialised, but it still needs to be formatted.
5. Right-click on that “Unallocated” space and choose “New Simple Volume…”.
6. A setup wizard will appear. You can just click “Next” through all the steps. It will automatically assign the next available drive letter.

Once you click “Finish”, Windows will format the drive. It will turn from a black bar to a blue bar in Disk Management, and more importantly, it will now show up in File Explorer, ready for you to use.

What to Do When an SSD is Initialised But Not Showing Up

Sometimes, you might get through the first steps, but the drive still doesn’t appear in File Explorer. You can see it in Disk Management—it has a blue bar and the status says “Healthy”—so you know the computer can see it.

This is a classic case of an SSD initialised but not showing up, and the reason is almost always simple: the drive hasn’t been assigned a drive letter, like (C:) or (D:). Without a letter, it has no address for File Explorer to find.

Here is the simple fix.

1. Open Disk Management again.
2. Find your new drive in the bottom panel (the one with the blue bar).
3. Right-click on the drive’s main box and choose “Change Drive Letter and Paths…” from the menu.
4. A new window will open. Click the “Add…” button.
5. You can usually just accept the drive letter it suggests automatically. Click OK.

The moment you click OK, your drive will appear in File Explorer, ready to use.

When an SSD is Not Showing Up in Disk Management at All

If you have opened Disk Management and your new drive is not listed at all, then the problem is not a simple formatting issue.

A new SSD not showing up in Disk Management means Windows cannot see the physical hardware. This is a clear sign that the issue is likely a physical connection or a BIOS setting. When an SSD is not initialised in Disk Management because it’s completely missing, it means you have to check the hardware.

Here is a quick troubleshooting checklist.

Check Your Physical Connections

The most common cause is a loose cable or a drive that is not seated properly.

• For a 2.5 inch SATA SSD, it needs two cables. Make sure the thin data cable and the wider power cable are both plugged in firmly.
• For an M.2 NVMe SSD, these drives slot directly into the motherboard. Make sure the drive is pushed all the way into its slot and screwed down properly.

Check Your Computer’s BIOS

The BIOS is the first thing that runs when you turn on your computer. If the BIOS cannot see your new SSD, then Windows will not be able to either.

1. Restart your computer and press the key to enter the BIOS setup screen as it boots up (this is usually F2, F12, or the Delete key).
2. Once inside, look for a menu that says “Storage” or “SATA Configuration”.
3. This menu should show a list of all connected drives. Look for your new SSD here.

If your new SSD is not showing up in the BIOS after you have checked the physical connections, it could point to a connection issue or, in rare cases, a faulty drive.

What If the Drive is Not Compatible?

Sometimes, even if all the cables are connected correctly, a new SSD is not showing up in the BIOS because the drive itself is not compatible with your computer’s motherboard.

For example, your motherboard might only support older SATA SSDs, but you have installed a newer, much faster M.2 NVMe SSD. In this situation, the motherboard simply doesn’t know how to communicate with the new drive, so it will never be detected.

Choosing the right type of drive for your specific computer is a crucial first step for a successful installation.

If you would like to learn more, we have a full guide on the differences between a traditional Hard Drive (HDD) and a modern Solid State Drive (SSD) right here.

Our Final Advice

Most of the time, the reason a new SSD is not showing up in Windows 11 is because the disk is not initialised. This is usually a simple fix that can be done in a few clicks in Disk Management.

However, if you have gone through all these steps and are still having trouble, we are here to help.

Or, if you would rather save yourself the hassle from the very beginning, we can handle the entire upgrade process for you. We can help you choose the correct compatible drive, professionally install it, and even transfer all your data from your old drive. We will make sure everything is set up and ready for you to use.

Give Computer Expert Adelaide a call, and our technicians can get your new drive working perfectly