Microsoft usbstor.sys Driver Download
The usbstor.sys is a USB device manufactured by Microsoft. This driver can help resolve issues like USB device not recognized, "Disk Not Formatted" errors, or if your device randomly ejects or stops working. This version of "usbstor.sys" has been downloaded 124,075 times with a user rating of 5 out of 5 stars, based on 531 reviews. Our users report success installing this driver update on PCs running Windows XP. The total disk space used for this update is 21.0 KB.
Supported Models
Microsoft usbstor.sys
Manufacturers
Supported Operating Systems
Windows 2003, Windows XP, Windows 2000, Windows NT4, Windows NT3.51, Windows ME, Windows 98SE, Windows 98, Windows 95, Windows 3.1
File Name
Additional Notes
Other USB support drivers found in Cab files needed for digital cameras.. email address is mstadiumvision@aol.com if you need any more like this....
Uploaded By
Jeff Marks (DG Member) on 5-Apr-2001
Most Helpful Reviews
(4 minutes after download)
(3 minutes after download)
(25 minutes after download)
Already tried it? Give your review.
Related Driver Updates
How to Update Microsoft usbstor.sys Device Drivers
Step 1 - Download Your Driver
To get the Microsoft usbstor.sys driver, click the green download button above. After you complete your download, move on to Step 2.
If the driver listed is not the right version or operating system, search our driver archive for the correct version. Enter Microsoft usbstor.sys into the search box above and then submit. In the results, choose the best match for your PC and operating system.
Tech Tip: If you are having trouble deciding which is the right driver, try the Microsoft Driver Update Utility. It is a software utility which automatically finds and downloads the right driver.
To find the newest driver, you may need to visit the Microsoft website. Most major device manufacturers update their drivers regularly.
Step 2 - Install Your Driver
Installing your newly downloaded driver is a straightforward process. Windows provides a dedicated tool called Device Manager for this purpose. Follow these steps to update your driver:
Access the Quick Access menu by right-clicking the Start button.
From the menu options, choose "Device Manager".
Within Device Manager, identify the device requiring the driver update.
Open the context menu for the device by right-clicking its name.
Select "Update driver" and proceed through the guided installation.
To complete the process, reboot your computer. This ensures the new driver is fully integrated into your system.
Regular driver updates contribute to optimal system performance and hardware compatibility.
Tech Tip: Driver downloads and updates come in a variety of file formats with different file extensions. For example, you may have downloaded an EXE, INF, ZIP, or SYS file. Each file type has a slighty different installation procedure to follow.
For more help, visit our Driver Support Page for step-by-step videos on how to install drivers for every file type.