it means a driver is incorrectly configured or missing
in Windows 7 I believe you must have Administrator priveldge to install hardware Windows 7 starter home basic and Home Premium
Windows 7 Professional Enterprise and Ultimate you must also have administrator privledge and local security must grant Administrators to add hardware
Windows Vista same thing as Windows 7
Yellow Triangle or Question Mark.
yellow question mark.esclamation point red x on the device icon
"PCI communications device" is displayed in the Device Manager when Windows does not have a driver for a PCI device that is used for networking in some fashion. It could be a dial-up modem, Ethernet controller, or a wireless card. You will need to download drivers from your computer manufacturer to display a more specific name in the Device Manager and make the yellow question mark go away.
You will see a symbol with red color cross (X mark) on the device icon which indicates that device is not working or disabled.
It is a "!" is a yellow triangle
yellow triangle or yellow exclamation mark
A common mark indicating that a Windows peripheral device is not installed properly is a yellow triangle icon with an exclamation point in the Device Manager. This symbol signifies that the device has encountered an error or that the drivers are missing or incompatible. Additionally, the device may not function correctly or at all, prompting troubleshooting steps to resolve the issue.
it means that the driver of that device is either not loaded or not properly loaded.. load the driver once again from the driver disk and the sign will go off..
A yellow exclamation mark in a triangle or a red cross in a circle indicate a problem. Displayed as a yellow triangle or question mark.
To restore the Microsoft Common Controller for Windows Class, you can try reinstalling or updating your USB drivers through Device Manager. Right-click on the Start button, select Device Manager, expand the "Human Interface Devices" or "Universal Serial Bus controllers" section, and look for any devices with a yellow exclamation mark. Right-click on the device and choose "Update driver" or "Uninstall device," then restart your computer to allow Windows to reinstall the driver. If the issue persists, consider checking for Windows updates or reinstalling the controller software from the Microsoft website.
Your sounds drivers are not installed. Find out the manufacturer of your card, and download the drivers. It might be listed in the Device Manager. Check the Device Manager to see if there are other drivers that you missed as well. START - CONTROL PANEL - SYSTEM - Go the the TAB on the top labeled HARDWARE - Click the buttom DEVICE MANAGER. Any devices in conflict, without drivers, or any other problems will be listed with a yellow explanation point to the left of it.
In Device Manager, a component that is working correctly is indicated by a green checkmark overlaying a device icon. This symbol signifies that the device is functioning properly without any issues. If a device has a yellow triangle with an exclamation mark or a red X, it indicates a problem or that the device is not functioning correctly.