EaseUS Partition Master

A simple partition tool to manage disk space in Windows 10

6 Tips to Speed Up SD Card Transfer Speed and Fix Slow Micro SD Card

Updated by Daisy on May 19, 2021
Written by Tracy King

"Hi Guys, I have just bought a Toshiba UHS3 128GB Micro SD Card. At the moment, I am getting poor speeds using the SD card on my PC, with a read of 35.74MB and a write of 10.72MB. This is a card that is supposed to have read speeds up to 90MB/s. I hope that I would get a lot faster than the speeds I am getting on the PC. Am I unrealistic, or could there be an issue with my tablet? Would a factory reset help anything?"

How to Fix Slow Micro SD Card with 6 Solutions

Have you ever met this problem that the SD card, USB, or even external hard drive gets slower and slower after using it for a long time? When external storage gets full, it may also slow down the data or file transferring speed on Windows PC. If you are having such a problem or need a speed up your SD card transfer speed, follow the tips below to resolve this issue:

Workable Solutions Step-by-step Troubleshooting
Fix 1. Change Card Reader A memory card reader is a device for accessing the data on a memory card...Full steps
Fix 2. Convert SD Card to NTFS Install and launch EaseUS Partition Master on your computer...Full steps
Fix 3. Format SD Card to NTFS Right-click This PC or My Computer, and select "Manage"...Full steps
Fix 4. Update SD card Drivers Connect the SD card to the PC. Navigate Control Panel -> System -> Device Manager...Full steps
More Solutions Optimize USB/SD Performance > Clean Up SD Card Junk Files...Full steps

Fix 1. Change Card Reader to Speed Up SD Card

A memory card reader is a device for accessing the data on a memory card such as a CompactFlash (CF), Secure Digital (SD), or MultiMediaCard (MMC). Most card readers also offer to write capability, and together with the card, this can function as a pen drive. If you have the right SD card reader, you can gain:

  • Full speed read/write for high performance
  • High-speed backup of high-resolution images and 4K videos
  • Built-in USB-A port for cable-free PC connection

how to speed up sd card transfer

Fix 2. Convert SD Card/USB from FAT32 to NTFS

Another way to fix a slow SD card is by converting FAT32 to NTFS without losing data. A FAT file system is often used in removable storage devices, such as digital cameras, Smart TVs, and other portable devices. But it has many limitations:

  • FAT32 only supports files of up to 4GB in size and volumes of up to 2TB in size
  • FAT32 isn't a journaling file system, which means corruption can happen more easily
  • FAT32 doesn't support file permissions

While NTFS supports very large files, restores consistency by using a log file and checkpoint information, supports file compression when running out of disk space. You can convert FAT 32 to NTFS with the help of EaseUS Partition Master. This tool allows you to convert the drive from FAT32 to NTFS without formatting directly.

EaseUS Windows Partition Tool

Step 1. Install and launch EaseUS Partition Master on your computer.

Step 2. Select a FAT32 partition, right-click on it and select "Convert to NTFS". If you need to convert a storage device such as SD card or USB flash drive to NTFS, insert it into your PC first and repeat the previous operation.

convert FAT32 to NTFS

Step 3. Click "OK" on the pop-up dialog box to continue.

convert FAT32 to NTFS

Step 4. Now the converting process will start automatically. Wait until the operation process is finished.

convert FAT32 to NTFS

Fix 3. Format SD Card/USB from FAT32 to NTFS

If your SD card is still slow, you can format it to NTFS in Disk Management. 

Step 1. Right-click This PC or My Computer, and select "Manage".

Step 2. Enter Device Manager and click "Disk Management"

Step 3. Open Disk Management and right-click the SD card, select "Format".

Step 4. Set "NTFS" for the selected device, tick "Quick Format" and click "OK" to confirm.

how to make sd card faster by formatting 

Fix 4. Update SD Card Drivers If SD/USB Is Slow

To speed up SD card transfer or write speed, you can update SD card drivers. Here are the steps to make it.

Step 1. Connect the SD card to the PC

Step 2. Navigate Control Panel -> System -> Device Manager -> Disk drivers.

Step 3. Find and right-click the SD card. Choose "Uninstall" and then choose "Scan for hardware changes" to refresh the drivers.

update sd card drive to speed up sd card transfer

You can update your SD card drivers in this way.

Fix 5. Optimize USB/SD Performance to Fix Slow Micro SD Card

After updating the SD card or USB driver, you can follow this method here to optimize USB or SD card performance by changing settings so to increase the data transferring speed with the following tips:

Step 1. Right-click on SD or USB drive and select Properties.

how to fix slow micro sd card -1

Step 2. Go to the Hardware tab and select your SD or USB drive, then click Properties.

how to fix slow micro sd card-2

Step 3. Click Change settings on Generic-Multi-Card USB Device Properties.

how to fix slow micro sd card -3

Step 4. Go to the Policies tab on the settings interface and select Better Performance under Removal policy.

how to fix slow micro sd card -4

Step 5. Then click OK to confirm the operation and click OK to keep all changes.

Step 6. Finally, restart your computer to save all changes.

Besides all the above steps, you can also try to wipe data on the SD card or USB drive for a faster data transferring speed with the help of EaseUS Partition Master.

Fix 6. Clean Up SD Card Junk Files to Make It Faster

If you still want to make your SD card or USB flash drive faster, you can clean up junk files with easy steps.

Step 1. DOWNLOAD EaseUS CleanGenuis for free and install it on your Windows PC.

Step 2. Launch EaseUS CleanGenuis. Select Cleanup on the main screen, and click Scan to start scanning.

large file cleanup - 1

Step 3. When the scanning process completes, select useless large files and click Clean to clean large files.

large file cleanup - 2

Step 4. When EaseUS CleanGenius completes cleaning the files you choose, click Done to finish the process.

large file cleanup - 3

Bonus Tip - Back Up Files/Data Before Formatting

It's highly recommended that all of your extract and back up all essential data saved on your USB, SD card, or external hard drive to a safe location on your PC or another storage device to avoid unnecessary data loss.

You may use professional backup software for help or copy and save files to the target storage device step by step on your Windows PC. 

Step 1. Launch EaseUS Todo Backup software and then choose "File", "Disk/partition" or "OS" for different backup purpose.

back up data with easeus todo backup

Step 2. Choose the system, disk partition, files or apps that you want to back up. Then click "Browse" to select a destination where you want to store the backup file.

Product News
EaseUS Todo Backup now supports users to back up files to the cloud. All you need to do is sign up with an EaseUS account, then you could enjoy a large cloud storage space. More advantages of backing up to the cloud include accessing backup files anytime and anywhere, saving file copies offsite, so you don't need to worry about virus attacks or computer failures, and easier and faster backup and recovery operations.
back up data with easeus todo backup

Step 3. Click "Save" to start the data backup process.


Now that your SD card or USB drive will gain a faster transferring speed on Windows 10/8/7 and you can move and transfer all data back to your SD card or USB drive to continue using them again. 

How to Speed Up SD Card for File Transferring FAQs

If you have related questions, you can read the questions and answers below:

What is the fastest SD card?

SanDisk Extreme PRO microSDXC is the world's fastest transfer speeds of up to 275MB/s. Clocking in at up to 275MB/s, the SanDisk Extreme PRO microSDXC UHS-II Card delivers the fastest transfer speeds that you've ever experienced.

How do I recover a corrupted micro SD card?

To fix and recover data from SD card:

Step 1. Run SD card recovery software and scan the card.

Step 2. Check found SD card data.

Step 3. Restore SD card data...

How can I tell how fast my SD card is?

An SD card's speed class is identified on the SD card itself-look for the logo. You'll also see the speed class on the online store listing or the card's packaging when purchasing it. For example, in the below photo, the middle SD card is speed class 4, while the two other cards are speed class 6.

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Updated by Daisy

Daisy is the Senior editor of the writing team for EaseUS. She has been working in EaseUS for over ten years, starting from a technical writer to a team leader of the content group. As a professional author for over 10 years, she writes a lot to help people overcome their tech troubles.

Read full bio

Written by Tracy King

Tracy joined in EaseUS in 2013 and has been working with EaseUS content team for over 7 years. Being enthusiastic in computing and technology, she writes tech how-to articles and share technical solutions about Windows & Mac data recovery, file/system backup and recovery, partition management and iOS/Android data recovery.

Read full bio

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  • I love that the changes you make with EaseUS Partition Master Free aren't immediately applied to the disks. It makes it way easier to play out what will happen after you've made all the changes. I also think the overall look and feel of EaseUS Partition Master Free makes whatever you're doing with your computer's partitions easy.

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