Similar help and support threads Thread: Forum: Speaker icon missing Windows 7 The last couple of times I have started my computer (Windows 7) my speaker icon has been missing on the tool bar. Some times it will come back. Fear not: it's easy to get it back, and in fact to pin any other program icon down there. Windows; Restore a 'Missing' Icon to Your Windows 7 Taskbar. So I'm going to assume it's Windows 7.
Missing program icons for Office 2. Solved - Page 2. Computer type PC/Desktop System Manufacturer/Model Number Self built custom OS 6. Windows 1. 0 Pro CPU Intel i.
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This Video Show You How to Fix Bluetooth Icon Missing From System Tray. Restart or log off your system and bluetooth icon will be back in system tray. Clock, Power, Volume system notification area icons are missing in Taskbar in Windows 8 / 7 & Turn system icons on or off. System icons not showing or missing from Windows 8 / 7. System icons not showing in. Icons disappear from the Windows 7 desktop. Look for the missing icons on your desktop. When you first access an icon in Windows. Windows 7: Missing program icons for Office 2013 products. Missing program icons for Office 2013 products. After the above repair about 1 weeks worth of data is now missing on my C: drive.
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Safely remove hardware icon missing - Forums. Because USB devices are Plug and Play devices there is little that can be done to control or configure them. However, most USB problems can be traced to one or more of the following conditions, ? Malfunctioning or incorrectly configured hardware ? Malfunctioning, incorrectly configured, or missing device driver ? Out- of- date firmware or basic input/output system (BIOS) ? Improperly configured root hub Note: The HKEY.
All values in the Enum subkey are manufacturer- and device- specific, so specific information can vary from computer to computer. Even though no USB devices are attached to a system, an icon is still displayed in the Notification Area which you may find entire unnecessary. Right- click within the Notification Area and then click Properties, Appearance tab, Advanced. On the Taskbar tab, click Customize and select Safely remove hardware.
In the Behavior column, click Always hide. Problems can arise when a new USB device is installed or when other changes are made to the system that affect a USB device.
Win. XP provides error messages when certain USB error conditions are encountered. Adding a USB device might cause a system to stop responding and if resetting the computer does not solve the problem, turn off the computer and try restarting it. If startup or stability problems persist, try any of the following troubleshooting suggestions: a.
Follow the manufacturer's installation instructions for the USB device. Some installations require that you run a setup program before plugging the device into your computer. Plug the device into another computer to make sure that the problem is not due to your computer configuration. If you can reproduce the problem, the USB device might be malfunctioning. If the device is attached to a USB hub, unplug it from the hub and reconnect it.
Turn the hub off and on or connect the device directly to a free USB port on the computer. Check the Event Log for USB- related error messages.
The message can provide clues or other valuable information about the problem. Check Device Manager to make sure that all devices on the Universal Serial bus controllers tree are functioning properly. Setting Device Manager to show USB devices by connection is usually the easiest way to spot a faulty device. Check that the device is not disabled.
If a yellow exclamation point precedes a device, check Windows Update or contact your hardware vendor to obtain the most recent, compatible driver. Verify that you are not exceeding USB power limits. If a USB device attempts to draw more than 5. A) of electrical current, the device must be accompanied by a wall adapter to draw the additional power. If you are unsure about total USB power consumption for your system, use the power supply if one is furnished with your device to guarantee adequate power (Open Device Manager, and then expand Universal Serial Bus controllers, double- click USB Root Hub, click the Power Management tab to view information about power consumption).
The USB specification allows up to five external hubs to be connected in a chain. Always use the cables included with the device and replace damaged or worn cables with an identical type. USB cables come in many kinds and lengths, depending on the capability of the device. Using incorrect cables can degrade performance or cause the device to stop functioning. Note: When installing a USB device, and an appropriate driver exists in the Driver. However, some USB devices might not be supported with Win.
XP and when Win. XP or you attempt to install an unsupported device, the system may prompt for the appropriate driver which you will have to supply by selecting the location on removable media containing the drivers supplied by the device manufacturer, . The USB error detection and correction scheme uses ''WMI'' event- driven architecture to resolve errors.
The interface usually notifies a user when a problem occurs on the bus, gives information about the error, and suggests solutions. When an error message is clicked, a dialog box appears showing the following, .
A description of the error condition. The tree- view, which is a topological view of the bus. The tree is expanded so that the device in question is displayed, selected, and in bold. A recommended user action, which depends on the current topology of devices on the bus. The following six error conditions reported for USB devices result in messages that give error descriptions, and some also give troubleshooting advice: a. Electrical surge on hub port - either a device attached to the port, or the port itself, has drawn more current than allowed, and the hub turned off the port.
The port will not function correctly until you reset it. If the device is the cause, it must be detached before resetting the port. To reset the port, disconnect the device, and then click Reset in the dialog box. If the port is the cause, close the dialog box, and do the following to re- enable the port: ? Re- attach the hub. Note: If it is the root hub, unplug all attached USB devices from the computer, and (if they have power supplies) unplug them from the electric supply. After a few moments, reconnect the devices.
The computer can be restarted at any time. USB hub port power exceeded - a device that requires more than 1. A has been plugged into a bus- powered hub that can supply only 1.
A to each of its ports. The device will not work until it is plugged into a self- powered hub, or into a root hub, that supplies 5. A to each port. Disconnect the problem device and reconnect it to an unused port that meets its power requirements. USB host controller bandwidth exceeded - a device request for allocation of bandwidth has failed because the USB host controller is in full use and has no spare bandwidth. Typically, devices support several settings at various levels of bandwidth. A device tries to allocate the highest bandwidth, progressively metering itself back after each bandwidth allocation fails.
Repeated requests trigger an error condition. Note: It is recommended that you close some applications that are using USB devices that use bandwidth. In Device Manager you can view the property page for the host controller to see bandwidth status. Pressing Refresh in the dialog box after making any changes updates bandwidth data to show whether bandwidth is freed. Maximum number of hubs surpassed - six or more USB hubs are linked in a chain, and the USB specification allows a maximum of five. It is recommended that you remove the most recently connected hub and connect it to a port that is highlighted on the tree view list in green (signifying that it is free and recommended).
Device enumeration failure - a device is plugged into a USB port, but the operating system does not recognize the device. The failure can have various causes. For example, the device might not initialize properly when it is plugged in, or the device driver might be faulty. If the cause is not a permanent malfunction in the physical device, unplugging and plugging the device in again might allow it to enumerate properly. Identical serial numbers - the serial number in a device, if it exists, must be unique for each device that shares the same USB Vendor ID and Product ID. Occasionally hardware vendors mistakenly program devices with identical serial numbers.
When two or more USB devices with identical serial numbers are plugged into the same system, only the first one plugged in functions. USB hubs can be built that operate in either self- powered or bus- powered mode. Self- powered hubs draw their power from the electrical outlet, while bus- powered hubs draw their power from the USB bus. From the aspect of user experience, hubs operating in self- powered mode have a significant advantage over hubs operating in bus- powered mode for the following reasons: a. A user can plug any bus- powered USB device into any port on a self- powered hub, and the device will always have enough power to function. The power needed by a bus- powered USB device in order to function can range from a few m.
A up to a maximum of 5. A. A user can plug a bus- powered USB device into a port on a bus- powered hub, but the device might not have enough power to function. Only low- power bus- powered devices are guaranteed to have enough power available from a bus- powered hub port to operate (section 7. USB Specification, Version 1. Low- power bus- powered devices draw less than 1. A when fully operational. To meet the specification, a bus- powered hub must supply up to 1.
A at each port, but must not supply more than 1. A. Typical low- power bus- powered USB devices include mice, keyboards, and other HID devices.
A large number of USB devices require between 1. A and 5. 00m. A from the hub port when fully operational. These devices will not operate when the user plugs them into a port on a bus- powered hub. Examples of high- power bus- powered devices that will not work with a bus- powered hub include video cameras, page scanners, and floppy disk drives. Warning: Even if it seems unlikely that a user would use USB for a high- power device, the problem with bus- powered USB hub designs is the user's expectation that any USB device can be plugged into any hub and it will work.
This is not true with bus- powered hub designs. Any of the following symptons may be experienced and can occur because Win. XP does not include support for EHCI host controllers, (Universal Serial Bus 2.
Support in Windows XP (Q3. A Hi- Speed Universal Serial Bus (USB) 2. Hi- Speed mode.? Using a Hi- Speed USB 2. The Generic USB Hub is a HI- SPEED USB device and will function at reduced speed when plugged into a non- HI- SPEED port. HI- SPEED USB Device Plugged into non- HI- SPEED USB Hub.
A HI- SPEED USB device is plugged into a non- HI- SPEED USB hub. An Enhanced Host Controller Interface- compliant (EHCI- compliant) USB host controller appears in Device Manager with an exclamation point in a yellow circle, or with status code 2.