tailieunhanh - USB Driver Uninstall Procedure for Windows

There are two main reasons to uninstall the USB drivers from your Windows operating system. 1) There is already a B&B USB to Serial converter installed on the Windows machine – in this case it may be necessary to uninstall the old drivers prior to installing the new device and its drivers. Keeping all of the drivers on the same version is the only way to guarantee top performance of each USB to Serial converter. 2) The other reason is to clear the system of device drivers for a product that is no longer used. . | USB Driver Uninstall Instructions - 2509 page 1 2 2009 B B Electronics. All rights reserved B B ELECTRONICS PRODUCT INFORMATION USB Driver Uninstall Procedure for Windows There are two main reasons to uninstall the USB drivers from your Windows operating system. 1 There is already a B B USB to Serial converter installed on the Windows machine - in this case it may be necessary to uninstall the old drivers prior to installing the new device and its drivers. Keeping all of the drivers on the same version is the only way to guarantee top performance of each USB to Serial converter. 2 The other reason is to clear the system of device drivers for a product that is no longer used. It is important to follow the steps below in the order given to insure a complete uninstall of the drivers. The first step will remove the COM port driver and the second step will remove the device driver. Step 1 - Uninstalling the COM Port Driver Open Device Manager Plug in the older product so that the drivers appear in the listing. Expand the Ports COM LPT tree. The USB port is listed by port type. In the example screen shot Figure 1 the port is an RS-485 type but may also be RS-232 or RS-422. Right-click on the COM port to be removed and select Uninstall. A Confirm Device Uninstall message box will appear Click OK. For Windows Vista users also check the box that says Delete the driver software for this device then click OK. -gfr Device Manager File Action View Help TESTLAB-PC E flS Computer ffi Q Disk drives E-ifli Display adapters E-. JI DVD CD-ROM drives Human Interface Devices E LỊ IDE ATA ATAPI controllers E- Keyboards Mice and other pointing devices fc_ Monitors E-ig Network adapters Other devices .life PCI Serial Port r MJ Portable Devices B-yy Ports COM LPT i ỵ Communications Port C0M1 ECP Printer Port LPT1 RS-485 Port C0M5 Processors E i Sound video and game controllers E Storage controllers Et System devices E ị Un iversa I Seri al El u s c 0 ntro 11 ers Confirm Device .