Explorer Closes with Error Message – Solution

When I open computer, one error message comes with only close message to click which is about explorer, and when i click on it it disappears and my computer doesn't work. Nothing opens, just a desktop background, nothing works, plz give me help, I can't format because I have important files in C drive in which I have windows installed.

Lets dig it. More precisely, lets put it this way:
When you start your Windows XP -based computer, you may receive the following error message:

Explorer has encountered an error and needs to close. We are sorry for the inconvenience.

Also, you may not be able to open folders, such as the My Documents folder or the My Computer folder.

Cause

This problem may be caused by Qcbar.dll, a program that adds adult Web site links to the Internet Explorer Favorites menu.

Solution

Tips: When everything disappears, try hitting Ctrl+Alt+Delete at keyboard. Windows Task Manager will appear. Click at the New Task button. Type there explorer. Hit Ok. See if explorer opens for you. You can choose command to open any application from another post which is 99 commands for windows.
Some commands you may try are as:
Add/Remove Programs command is appwiz.cpl
Command Prompt cmd
Computer Management compmgmt.msc
Network Connections control netconnections
Network Connections ncpa.cpl
Registry Editor regedit
Registry Editor regedit32
My recommendations are to disable internet connection before you start computer and open task manager and then view processes and delete any process you find suspicious. Then try above add or remove command there. Remove any malicious program if installed. If the problem remains, then proceed to the steps mentioned below.
To resolve this problem use one of the following methods.

Method 1

Remove the Link from Your Favorites Folder in Internet Explorer.
To do so, start Internet Explorer, and then click Uninstall on the Adult Links menu in the Favorites folder.

Method 2

Manually Delete the Qcbar Program Files.
This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs.
To do this, follow these steps:

• Click Start, and then click Run.
• Type regedit in the Open box, and then click OK.
• Delete each of the following registry entries. To do this, right-click each registry entry below, click Delete, and then click Yes.
  HKEY_CLASSES_ROOTAllch.IEObj
  HKEY_CLASSES_ROOTAllch.IEObj.1
  HKEY_CLASSES_ROOTCLSID{765E6B09-6832-4738-BDBE-25F226BA2AB0}
  HKEY_CLASSES_ROOTCLSID{D6FC35D1-04AB-4D40-94CF-2E5AE4D0F8D2}
  HKEY_CLASSES_ROOTInterface{ED7D1356-F7C2-4A27-A87C-C0DFEB3A628F}
  HKEY_CLASSES_ROOTInterface{242CA913-1637-4F74-9729-EA349AF3ECAC}
  HKEY_CLASSES_ROOTQcBar
  HKEY_CLASSES_ROOTQcBar.1
  HKEY_CLASSES_ROOTTypeLib{C02EE3A0-1881-419F-A5ED-737223463292}
  HKEY_CLASSES_ROOTTypeLib{60381D4B-8129-449A-A5F2-5417AD0571CC}
  HKEY_CURRENT_USERSoftwareQcBar
  HKEY_LOCAL_MACHINESOFTWAREMicrosoftCode Store DatabaseDistribution Units{765E6B09-6832-4738-BDBE-25F226BA2AB0}
  HKEY_LOCAL_MACHINESOFTWAREMicrosoftInternet ExplorerToolbar{765E6B09-6832-4738-BDBE-25F226BA2AB0}
• Shut down, and then restart your computer.
• Manually delete the Qcbar program files. To do this, follow these steps:
  Click Start, and then click Run.
  Type cmd in the Open box.
  Switch to the C:Documents and SettingsUserNameStart MenuProgramsAccessories folder, and then type the following commands:
  del "%WinDir%Downloaded Program Filesallch.dll"
  del "%WinDir%Downloaded Program FilesQcBar.dll"
• In the Internet Explorer Favorites folder, delete the Adult Links folder, delete the AdultSearch folder, and then delete the Sports folder.
• Delete the Adult Links Daily shortcut from the Desktop menu and from the Start menu.

Hope it helps.
If all fails, remove hard disk, approach any computer nerd friend, tell him to boot this hard with his PC, secure your files from C and reinstall windows.
If you have any other computer related problem, you can use TechMynd contact page to ask the solution to your PC related problems.