Select your Windows 10 edition and release, and then click on the Download button below. Windows 10 Home Windows 10 Pro Windows 10 Education Windows 10 Enterprise 1507 1511 1607 1703 1709 1803 1809 1903 1909 2004 20H2 21H1. Jun 08, 2000 In order to make your Microsoft device work, you may download any file from the given list which has (USBSTOR GenDisk) number. Make sure that you download the proper Microsoft storage driver file for your operating system before install. All USBSTOR GenDisk files which are presented on this Microsoft page are antivirus checked and safe to download.

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USB Mass Storage Driver (USBSTOR) Service Defaults in Windows 10

USB Mass Storage Class Driver by Microsoft Corporation.

Default Settings

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Default Behavior

USB Mass Storage Driver is a kernel device driver. In Windows 10 it is starting only if the user, an application or another service starts it. If USB Mass Storage Driver fails to start, the failure details are being recorded into Event Log. Then Windows 10 will start up and notify the user that the USBSTOR service has failed to start due to the error.

Restore Default Startup Configuration for USB Mass Storage Driver

1. Run the Command Prompt as an administrator.

2. Copy the command below, paste it into the command window and press ENTER:

sc config USBSTOR start= demand

3. Close the command window and restart the computer.

The USBSTOR service is using the USBSTOR.SYS file that is located in the %WinDir%System32drivers folder. If the file is changed, damaged or deleted, you can restore its original version from Windows 10 installation media.

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About Hardware IDs

A device Hardware ID (HWID) is a set of numbers and letters that uniquely identifies any device. For example, different models of Motherboards, Graphics Cards, Printers and Network Interface Cards would have their own unique Hardware ID.

The general format for a Hardware ID is <Bus Type><Vendor ID>&<Device ID>&<Additional IDs>.
The Vendor ID takes the form 'VEN_XXXX' where XXXX is a 4 digit code unique to the manufacturer.
The Device ID format is 'DEV_YYYY' where YYYY is a 4 digit code unique to that manufacturer's device.

Hardware IDs are useful because they help identify the manufacturer and model of every hardware device inside, or attached to, your computer.

Each Hardware ID is assigned to a particular device by the device manufacturer. Windows operating systems such as Windows 10 use the Hardware ID to match to a specific INF file. INF files are used to install the correct device drivers - that's the software that lets your computer communicate with the device in the most efficient manner.

While a particular device driver is associated with specific Hardware ID, that driver may be compatible with other devices as well. In that case, the INF file would identify one or more Hardware IDs as an exact match, and provide a list of Compatible Hardware IDs for that driver. In many cases, the Compatible Hardware IDs will look similar, with the identifier having only minor variations, particularly in the Device ID portion.

How to Install Drivers

Once you download your new driver, then you need to install it. To install a driver in Windows, you will need to use a built-in utility called Device Manager. It allows you to see all of the devices recognized by your system, and the drivers associated with them.

Tech Tip: If you are having trouble deciding which is the right driver, try the Driver Update Utility for USBSTORDISK. It is a software utility that will find and install the right driver automatically.

Open Device Manager

• In Windows 10 & Windows 8.1, right-click the Start menu and select Device Manager

• In Windows 8, swipe up from the bottom, or right-click anywhere on the desktop and choose 'All Apps' -> swipe or scroll right and choose 'Control Panel' (under Windows System section) -> Hardware and Sound -> Device Manager

• In Windows 7, click Start -> Control Panel -> Hardware and Sound -> Device Manager

• In Windows Vista, click Start -> Control Panel -> System and Maintenance -> Device Manager

• In Windows XP, click Start -> Control Panel -> Performance and Maintenance -> System -> Hardware tab -> Device Manager button

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Install Drivers With Device Manager

1. Locate the device and model that is having the issue and double-click on it to open the Properties dialog box.

2. Select the Driver tab.

3. Click the Update Driver button and follow the instructions.

In most cases, you will need to reboot your computer in order for the driver update to take effect.

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Visit our Driver Support Page for helpful step-by-step videos

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If you are having trouble finding the right driver, stop searching and fix driver problems faster with the Automatic Driver Update Utility. Many computer problems are caused by missing or outdated device drivers, especially in Windows 10. If your deskttop or laptop is running slow, or keeps crashing or hanging, there is a good chance that updating your drivers will fix the problem. Automatic updates could save you hours of time.