Acer 640BU Driver Download
The 640BU is a scanner manufactured by Acer. Scanner drivers act as an interface between the scanner hardware and the operating system, utilizing Application Programming Interfaces (APIs). As operating systems evolve, the APIs may change. Updated drivers ensure that the scanner can communicate effectively with the latest API versions, preventing compatibility issues and system instability. This driver - "x_SETUP.DLL" - has been downloaded 7,460 times and is rated 3 out of 5 stars based on 42 reviews. Visitors have successfully installed this driver on PCs running Windows 7 and Windows XP. The total disk space used for this update is 34.8 KB.
Supported Models
640BU
Manufacturers
Supported Operating Systems
Windows XP
File Name
x_SETUP.DLL (34.8 KB)
Uploaded By
Cara (DG Member) on 16-Sep-2002
Ratings & Reviews
See all Acer 640BU ratings and reviews
Related Driver Updates
How to Update 640BU Device Drivers
Step 1 - Download Your Driver
To get the 640BU 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 Acer 640BU 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 Acer 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 Acer website. Most major device manufacturers update their drivers regularly.
Step 2 - Install Your Driver
After you get your new driver, you need to put it on your computer. On Windows, there's a tool called Device Manager that helps with this. It shows you all the parts of your computer and the drivers they use. To finish setting up the new driver, you'll probably need to turn your computer off and on again.
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.