Windows 7 Windows Vista Windows XP

Fix : Device Manager not showing any hardware / empty device manager problem in Windows 7 , Vista , XP

After reading this guide you will be able to fix a problem where Device manager when opened shows no hardware listed or you may call it an empty device manager. This problem has been encountered in Windows XP, Vista & Windows 7. There are a few fixes that can sort this problem. Below is the list of solutions according to your operating system. Some of the solutions mentioned below apply to all Windows Operating system with just a few minor changes.

Universal Fixes

  • If you are using Windows XP, Insert the Windows CD / DVD into the drive. For Windows Vista & 7 CD /DVD is not needed.
  • Go to run ( Windows Key + R )
  • This will take sometime to complete.

Windows XP

Note: Before Editing Registry Follow this guide to Backup Your Registry

  • Go to Start Menu
  • Click on Run
  • Type regedit
  • Expand SYSTEM
  • Expand CurrentControlSet
  • Select Enum
  • Click on Security , Permission menu
  • Click Add
  • Add the group Everyone and user SYSTEM
  • Select Everyone
  • Check Read only
  • Select system
  • Check Full Control
  • Click the Advanced button ( at the bottom)
  • Check Reset permissions on all child objects
  • Click ok
  • Click yes
  • Close the Registry Editor

Windows 7 / Vista

  • The very first steps should be to follow the universal repair procedure mentioned at the top of the guide.
  • Use This guide to try Clean boot in Windows Vista, 7 
  • Making a new user account
  • Go to Control Panel
  • Click User Accounts
  • Click on Manage Another Account
  • Click on Create a new account
  • Select the type as Administrator
  • Assign a new name & a password if required
  • Log Off
  • Login to the new account at the welcome window
  • Check Device Manager
Windows 7 Windows Vista Windows XP

Solve : USB Device not recognized problem in Windows 7 , XP, Vista

After reading this post you will be able to solve / fix “ USB Device not recognized “ error message that is displayed on your Windows Computer system. Windows 7 & VISTA Hotfix link inside. Microsoft FIXIT for Windows XP ( Link Inside )

There are quite a few causes for this problem to occur. Following are some of the resolutions that we have come across while troubleshooting Windows over time. These solutions are applicable on Windows 7, XP & Vista.

Uninstall & Reinstall USB Root Hub

  • Go to device manager ( Control Panel ), Windows 7 users can type device manager in the start menu search box & open the proper program from the results displayed.


  • Expand Universal Serial Bus controller options
  • Right click on USB root hub ( one at a time ) & click uninstall.
  • Remember if you are using a USB keyboard/mouse or any devices that use USB interface might stop working.
  • Restart your computer.

If the problem persists

  • Turn off Power Management in Windows
  • Click Start, click Run, type Devmgmt.msc, and then click OK. The Device Manager window opens.
  • Expand Universal Serial Bus controllers.
  • Right-click a USB Root Hub in the list, and then click Properties. The USB Root Hub Properties dialog box is displayed.
  • Click the Power Management tab.
  • Click to clear the Allow the computer to turn off this device to save power check box, and then click OK.
  • Repeat steps with all USB Root hubs available.


If the problem persists

  • Go to, your computer/motherboard manufacturer’s support website & from there download and install latest chipset drivers from there.
  • Install these drivers & restart your computer

If the problem persists

  • Go to, Windows Update ( Control Panel )
  • Update your Windows with all recommended updates & check if there are any hardware device drivers within optional updates, Install them as well.

Windows 7 & Vista Users HOTFIX

FIXIT for Windows XP users

The Last Step for Laptops ( All Portable Devices with removable battery/ Desktops


  • Turn off your Computer
  • Take the battery out carefully, refer the documentation that came with your computer.
  • Press & hold the power button for a few seconds.
  • Put the battery back into the compartment
  • Start the computer and check


  • Turn off your computer
  • Pull out the power cord from the mains or backup unit ( UPS )
  • Maintain no power policy for 2 minutes
  • Restore power to the computer unit
  • Start your computer to check.
Windows 7 Windows 8 Windows Vista Windows XP

Fix : Windows : No sound problem in Windows 7 , Vista , XP

There can be a number of reasons if your computer doesn’t play any sound at all. Sounds include Windows basic sounds, music etc.

What to Check:

  • Sound Hardware is present or not
  • Device Drivers are installed or not
  • Speakers/Headphones wires are connected properly
  • Check if mute button is pressed
  • Sound/Audio Hardware is Enabled from BIOS

Sound Hardware/ Sound Card:

Sound Hardware is commonly known as sound card. If you have a desktop system & have installed a add-on sound card for high performing sound, the first step would be to open the cabinet and check if the sound card is installed into the slot properly.

If you have a laptop ( notebook/netbook/ultra book), there are very slight chances that you have a Add-on Sound card installed.

To Check the sound card from within windows:

Go to Device Manager,

To open Device Manager:

Control panel –> small icons –> Device Manager,
type device manager directly into the start menu search box ( Windows 7 only ) 

See the below screenshot and check if the sound, video & game controllers shows your Audio hardware installed.

device manager


To Check if Device Drivers are Installed or not

If you see a Exclamation mark on any listed hardware or see a yellow question mark saying other devices, it is quite possible that either the device drivers that are installed for your device are faulty or there are no drivers installed.

To resolve, right click the hardware listed either in other devices or with an exclamation mark & click on update drivers & let Windows search the Windows Update service for any new drivers that might be available for your device type.

You can also visit your computer manufacturers support website & try downloading the drivers from there. * refer your computer documentation.

If you see no hardware present within the sound, video & game controllers, you should try pressing the Scan for hardware changes button just below help ( refer screenshot above). If there is no response from the device manager after refreshing you might be facing a hardware issue or Your Audio Hardware might be disabled from your BIOS options. ( To enable/ check BIOS settings go to the end of this page).

To Check if Speakers/Headphone wires are connected properly

There is no special guide relevant for this, but if you really don’t know how to check a loose connection, follow the wires connecting your computer to your speakers/headphones and vice-versa. Tighten if loose.

Check if the wires are plugged into correct slot

if you are using a desktop PC, see the image below and confirm all the wires are plugged into the right slot.

sound back panel desktop

Also, check for faulty speakers/Headphones.

Check if the mute button is pressed

Sometimes a hotkey or otherwise the mute key gets activated and we just don’t pay attention to the muted volume button in the taskbar. refer images below





If you see the muted icon in your taskbar click on it to unmute. Also check the volume level and increase if necessary.

Check if Sound/Audio Hardware is Enabled from BIOS

To do this, refer your motherboard/system maintenance manual & looks for things given below:

  • Press Del or F2 or F10 or any other key depending on your system type & make
  • Advanced Options/ Integrated Peripherals
  • Enable Onboard Audio/ AC’97/HD Audio
  • Enable it
  • F10 ( Save & Exit )

Microsoft Fix it Troubleshooter

To run a sound playback troubleshooter



To run a hardware and devices troubleshooter