This page contains the list of device drivers for the dell OptiPlex 755 desktop. To download the proper driver, choose your operating system and click the download button. Windows 10, Windows 8.1, Windows 7, Windows Vista, Windows XP. Get drivers and downloads for your Dell OptiPlex 755. Download and install the latest drivers, firmware and software. Dell Optiplex Serial Port Driver For Windows Bit Super. By donoditya On February 17, 2018.
Automatic Driver Update Windows 10 here. After installation, there are those pesky little yellow triangles in Device Manager, next to the PCI Communications Driver, as well as the serial port driver and one other. Doing a web search, it seems like people had this same problem with the Windows7 beta as well. When I tried to install Windows7 64 bit drivers from the Dell web site, they errored saying I had the wrong operating system. The wireless system seems to be missing or disabled, yet device manager reports the device is there, with driver installed and working properly. My guess is that since it's a PCI wireless card, themissing PCI Communications driver may be the problem with that. Too bad, I was thinking the Metro interface might be good for my preschoolers. What was bothering me most was that none of the tiles on the Start screen would run.