Installation Manual

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Table Of Contents

How to Use DiskPart to Clean a Drive

RAOYI® provides this limited warranty to the end user purchaser (“You”), that this

product (the “Product”), excluding content and or software supplied with or on the

Product, will be free from material defects in manufacture, will conform to RAOYI®'s

published product specifications.

But we do not rule out the possibility of a situation that occurs during actual use for

some reason

When your USB flash drives or other removable disks are not showing the original

size, you may wonder how it happens or where the lost capacity disappears.

Generally speaking, there are various reasons that will mistakenly display the actual

disk space of a flash drive or an external disk. For example:

1.The flash drive has more than one partition on it. Windows will only recognize the first

partition.

2. There is a hidden recovery partition or unallocated space that does not show up in the PC.

3 The 64GB or 128GB USB flash drive is formatted with an improper file system (FAT32) in

Windows.

4. Some viruses did damage to the disk or the card reader/host devices are not well suited for

some types of memory cards.

How to Use DiskPart to Clean a Drive

There are 2 stages:

1. Cleaning the Drive

2. Partitioning and formatting

First, launch the command prompt as Admin. In Windows 10 and 8, you can just

right-click the Windows icon or you can press Windows Key + X and select

‘Command Prompt (Admin)’.

If you are using Windows 7, you have to search for Command Prompt by typing the

same in the search box. Now, right-click on the shortcut Command Prompt and select

Run as Administrator.

To use diskpart to clean the drive, make sure the USB drive, SD card or any other

memory card that you want to clean is connected to your computer.

Summary of content (4 pages)

PAGE 1
RAOYI® provides this limited warranty to the end user purchaser (“You”), that this product (the “Product”), excluding content and or software supplied with or on the Product, will be free from material defects in manufacture, will conform to RAOYI®'s published product specifications.
PAGE 2
To launch the tool, type ‘diskpart’ command in the Command Prompt and press Enter. Type ‘list disk’ command to know how many disks are connected to the computer. If you carefully observe the image below; Disk 0 is 465 GB and Disk 1 is 4700 MB. The USB drive that we want to clean is 8 GB. By this, we know that Disk 0 is the computer’s internal drive and Disk 1 is the USB drive.
PAGE 3
Warning! Be careful with Disk number. If you select the wrong disk number, you’ll end up cleaning the wrong disk and lose all the data in it. Once you are confirmed about the disk you want to clean, type ‘select disk’ followed by the ‘disk number’ and press Enter. The diskpart has selected the disk you mentioned. Now, any action you perform will be performed on the chosen disk. To wipe the disk completely clean type command ‘clean’ and press Enter. You’ll now see ‘diskpart succeeded in cleaning the disk’.
PAGE 4
Stage 2 Formatting and partitioning the Disk How you would normally initialize, format and partition a disk, you will be able to perform the same with‘Clean’USB drive. You can do this is in diskpart command itself, but it is much easier with Disk Management Tool. Launch the Disk Management Tool, right click Windows icon and select ‘Disk Management’ in Windows 10 and 8. If it is Windows 7, open Run dialog box by pressing ‘Windows + R’ keys and type ‘diskmgmt.msc’ into the box and press Enter.