How to Fix Slow SSD Write Speed on Windows 10/11 [Complete Guide]

If you're experiencing issues with slow SSD write speed and other random errors, you've come to the right place. In this guide, you'll learn more about the reasons for SSD slowdowns and some simple yet quick fixes for them.

Let's start with why SSDs slow down over time.

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Why Does an SSD Slow Down? ## What is an SSD? A Solid State Drive (SSD) is a storage device that uses non-volatile flash memory technology. Compared to traditional Hard Disk Drives (HDDs), SSDs have no moving parts, resulting in faster read and write speeds, shorter boot and access times, and greater durability. However, over time, an SSD may experience performance degradation due to several reasons: 1. **Wear Leveling**: SSDs have a limited number of erase-write cycles for their flash cells. To ensure even wear, the SSD controller implements wear leveling algorithms, which can cause data to move between cells, affecting performance. 2. **TRIM Support**: The operating system informs the SSD which data blocks are no longer needed through the TRIM command, allowing the SSD to free space and optimize performance. Without enabled or improperly configured TRIM, SSD performance may degrade gradually. 3. **Fragmentation**: While SSDs are more resistant to file fragmentation than HDDs, prolonged use can still lead to scattered files across the storage space, slowing down read and write speeds. 4. **Over-provisioning**: Reserving a portion of unallocated space helps the SSD manage itself internally and maintain high performance. When the SSD is close to full capacity, its performance may be affected. 5. **Firmware and Driver Updates**: Outdated firmware or driver versions can impact SSD performance. Ensuring the latest updates are installed can address potential issues. 6. **Thermal Management**: Continuous high temperatures can affect SSD performance. Ensuring good thermal conditions helps maintain optimal performance. 7. **Power Management Settings**: Some laptops' power management settings may limit SSD performance. Checking and adjusting these settings can improve speed. To address a slow SSD, you can try the following: - Perform disk defragmentation occasionally (although it's not strictly necessary for SSDs) - Ensure TRIM is enabled - Update the SSD's firmware and drivers - Make sure the SSD has sufficient reserved space - Maintain a cool operating environment - Check power management settings By implementing these steps, you can help restore your SSD's original speed and performance.

Many users report speed issues, such as the “Samsung SSD write speed slow” problem. Thanks to advancements in integrated circuit technology and the way they transformed computer performance, solid-state drives (SSDs) have become very popular recently. However, slow SSD write speed is a common issue with old or 100% full disks.

Regularly running SSD performance tests can help catch issues early. Here are some reasons why your SSD might be underperforming in Windows 10/11 or another operating system:

• Insufficient RAM
• AHCI mode not enabled
• Incorrect computer settings
• SSD storage completely used up
• Virus infection in files on the SSD (Solid State Drive)
• Incorrect boot order configuration
• Missing or disabled TRIM command
• Outdated BIOS/firmware version for the device or drive

Now that you're aware of the main reasons behind slow SSD write speed, you can proceed to the next section of the article to learn how to test SSD write speed and fix the slowdown issues.

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How to Test SSD Write Speed

If you suspect that slow SSD write speed is causing your computer to run slowly, you can verify this with the Command Prompt, but doing so will require typing in a few commands, which might be difficult if you're a beginner.

If you're not comfortable with these commands, it's easier to use a third-party app for the speed test. From my experience, tools Partition Master is among the best programs around for this purpose.

The "Disk Benchmark" feature in Partition Master allows you to easily check the write speed of your SSD. Even if you're a beginner, you can navigate its user-friendly interface and effectively use it to manage your drives.

Follow these steps to learn how to check your SSD's write speed:

Step 1. Launch AOMEI Partition Assistant. Then click the Download button to activate the "DiskMark" feature under the "Discovery" section.

Click the Download button for DiskMark.

Step 2: Select the target drive, test data, and block size from the drop-down menus.

Step 3. Once all settings are configured, click the “Start” button to begin the hard drive test. You will then see data such as sequential or random read/write speeds, I/O, and latency.

Click Start.

The software can easily identify and fix SSD speed issues with just a few clicks. Additionally, if your partitions or disk space are running low, the Quick Partition feature can help boost your computer's performance.

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AOMEI Partition Assistant is your one-stop solution for addressing any drive issues and finding their solutions. This application also lets you instantly check for file system errors and bad sectors, followed by rectification, getting your troubled device back to functioning normally.

What are you waiting for? Download it now and give it a try.

How to Fix Slow SSD Write Speed on Windows 10/11 - 10 Solutions

Now it's time to look at how to fix the SSD speed issues you might have discovered. Here are 10 solutions:

• Solution 1: Align the 4K sectors of the low-speed SSD
• Solution 2: Ensure TRIM command is enabled
• Solution 3: Enable AHCI mode
• Solution 4: Disable integrated graphics card
• Solution 5: Choose High-Performance Mode
• Solution 6: Update SSD firmware
• Solution 7: Set correct boot order
• Solution 8: Free up hard drive space
• Solution 9: Check the SATA port
• Solution 10: Inspect the SATA data cable

Note: If you know the exact issue affecting your SSD's write speed, you can jump straight to that solution and find out how to fix it. If not, try them one by one to see if they help.

Fixing slow SSD with 1.4K alignment

Too much fragmentation can slow down an SSD, so the first solution to fix a slow SSD is to align it to 4KB to improve its performance. You can use the 4KB alignment feature in Partition Master to speed up your SSD.

Here's how:

Step 1: Go to the “Toolbox” and select “4K Alignment.”

This solution also applies to fixing slow Windows 10 after cloning. If you're interested in this topic, you can click the link.

How to Fix Slow Windows 10 After Clone - Practical Methods

Have you cloned Windows and are now facing the issue of slow Windows 10 after clone? Learn from this comprehensive guide how to resolve the problem and optimize SSD after cloning.

To efficiently fix your slow SSD, try using the Partition Master tool now. This tool can also help you improve SSD read and write speed.

Fix 2: Make sure the TRIM command is running

If TRIM isn't running on your system, you may experience slow write speeds on your SSD. Follow these steps to run TRIM on your system:

Step 1. Open the Command Prompt as an administrator.

Step 2: Type the "fsutil behavior query DisableDeleteNotify" command, and then press "Enter." If the result is 0, TRIM is enabled; if the result is 1, TRIM is disabled.

If the result is 1, type fsutil behavior set DisableDeleteNotify 0 and press Enter.

You have successfully enabled the TRIM command on your device.

Fix 3: Enable AHCI mode

The main advantage of AHCI (Advanced Host Controller Interface) is that it allows an SSD to run faster than it would in IDE mode. So, you need to enable it to get the higher write speeds that your SSD is capable of.

You can accomplish this using the Command Prompt. Here's how:

Run the Command Prompt as an administrator.

Step 2: Type "bcdedit /set {current} safeboot minimal" and press "Enter."

Step 3: Enable “AHCI” mode in the BIOS.

Step 4: Save your changes and exit the BIOS.

Step 5. Type the "bcdedit /deletevalue {current} safeboot" command in the Command Prompt terminal in Safe Mode.

Step 6: Restart your system to automatically install the AHCI driver.

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Fix 4: Disable Onboard VGA

Another reason that might cause slow SSD write speed is your onboard VGA being enabled. So, to fix this, follow the instructions below.

Step 1: Restart your computer and enter the BIOS.

Step 2. Go to the “Advanced BIOS” section and look for “Onboard VGA.”

Step 3: Choose “Deactivate.”

Fix 5: Choose High Performance mode

If an SSD doesn't get enough power, it might not work correctly. So you need to choose High-Performance mode to let the SSD work at its best.

Step 1: Search for “Power” in the Start menu.

Step 2. Choose “Power & sleep.”

Step Three: Now click on the “Additional power settings” option.

Step 4. Select the “Power mode” option, and then choose “Best performance.”

Step 6: Update the SSD firmware

Is your SSD's firmware up to date? It's essential to update an SSD's firmware as new vulnerabilities and fixes are discovered.

You can update the firmware to improve the performance of your SSD. To do this, you'll need to determine the exact firmware version of your SSD and then download the latest firmware update from the manufacturer's website.

Fix 7: Set the Correct Boot Order

An incorrect boot order can also cause an SSD to run slowly. If the hard drive is prioritized over the SSD, your computer will run slower. You can set the correct boot order with these steps:

Step 1: Restart and enter your device's BIOS.

Step Two: Select “System Configuration” and then “Boot Options.”

Step 3: You can now change the boot order.

Fix 8: Free up space on your SSD

Mess on the drive will certainly slow down the SSD's write speed, though. Don't worry, though! It's easy to fix with the Partition Master tool.

You can learn how to free up disk space by clicking the link below.

How to Free Up Disk Space in Windows 10/11 [Step-by-Step Guide]

If you don't have enough space on your computer to install new apps or games, or if cluttered files on your hard drive are driving you crazy, you're not alone.

Fix 9: Check the SATA port

Most motherboards have both 3 Gbps and 6 Gbps SATA ports. The speed of the port will affect your SSD's performance. Since it can be difficult to tell the difference between SATA ports, consult your motherboard's manual to locate it.

An Intel SATA controller is usually built into the motherboard if it has an Intel chipset. The fastest one should be labeled, and you should always use that for the best speed.

Fix 10: Check the SATA cable

An SSD's write speed can also be affected by the condition of its SATA cable, which might be damaged or of poor quality. Check that your cable is in good condition, and buy SATA cables only from reputable manufacturers.

Meanwhile, ensure that the cable sockets are secure and free from loose connections. You may also consider reseating the cables for optimal retention.

Hopefully, one of these ten solutions will solve your problem.

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Conclusions

A slow write speed on your SSD can be frustrating, especially when using your computer for gaming or important tasks. Furthermore, if you don't address this issue promptly, your SSD might become irreparable, meaning you'll lose all your data.

Therefore, you should regularly check the status of your SSD. You can easily check the speed of your SSD and even speed up a slow SSD by downloading Partition Master. The tool is compatible with SSDs from brands other than Samsung and Sandisk, such as fixing the issue of slow write speed on Toshiba SSD. You can use the solutions in this article if you want to fix the issue of a slow SSD writing speed. The following video shows you how to check the SSD speed.

 

Frequently Asked Questions About Slow Write Speeds on SSDs

With the ten fantastic solutions offered in the article, fixing slow write speed on your SSD is now more straightforward than ever.

Hopefully, the above solutions help you use the SSD as intended. If you still have questions about slow SSD write speed, check out this FAQ.

**1. What is a good write speed for an SSD?** A good SSD write speed generally ranges from 500 MB/s to 3,500 MB/s or even higher for premium models. This speed may differ depending on the type of SSD (SATA or NVMe), the interface it employs, and the specific model. For everyday use, a write speed of around 500-1,000 MB/s is adequate, but for professional workloads such as video editing or large file transfers, a faster write speed is recommended.

Write speed refers to how fast data is written to the drive. A standard SSD has read and write speeds of 200-500 MB/s, though some can reach several thousand MB/s. Anything over 300 MB/s is very fast.

< strong > 2. Why is my disk write speed so slow?

There can be multiple reasons for slow write speed on your disk, including insufficient RAM, outdated BIOS firmware, lack of disk space, virus infection, or the TRIM command being disabled. Using third-party tools like Partition Master can help quickly identify and resolve SSD write speed issues.

How to solve the problem of slow SSD write speed?

Before addressing slow SSD write speed, ensure it has sufficient free space. Check if your computer has TRIM enabled. You can also inspect the SATA connection or cable, and download the latest firmware or drivers for your computer and SSD.