How to correct User32.dll problem?

What is the User32.dll file?

Windows stores instructions for graphical elements such as dialog boxes and windows in the User32.dll file. The User32.dll file is necessary to the operation of Windows. If this file is damaged, deleted, or removed, the system will no longer work correctly. If a program or a service accesses User32.dll incorrectly, the program or the service will not work correctly.

User32.dll errors are typically corrected by repairing the User32.dll file or by reinstalling the program, the hardware component, or the driver that is causing the error. If these procedures do not correct the User32.dll error, you can restore your computer to a condition before the error appeared by using the Windows System Restore feature.

SYMPTOMS

Error messages are the most common symptom of User32.dll problems. User32.dll error messages describe the source of the error and indicate that the User32.dll file is involved in the error.

Here is an example of a User32.dll error message:

• "program Illegal system DLL relocation"

Resolution

Advanced Troubleshooting

Method 1: Use Recovery Console to restore the User32.dll file

Some User32.dll errors can be fixed by restoring the original User32.dll file from your Windows CD. Restoring the User32.dll file replaces the copy of User32.dll on your computer by using the original copy of User32.dll that is contained on your Windows CD.

You can use this method if you are running one of the following Windows operating systems:

• Windows XP

• Windows Server 2003

• Windows 2000

Before you perform this procedure you should have the Windows installation CD.

Step1:Insert the Windows XP CD into your computer, and then restart the computer.

Step2:If you are asked whether you want to start the computer from the CD drive, click Yes.

Step3:When the "Welcome to Setup" screen appears, press R to start the Recovery Console.

Step4:When you are asked to type the Administrator password, type the Administrator password. If the administrator password is blank, just press ENTER.

Step5:At the command prompt, type the following command:

cd %systemroot%\system32

Step6:First, rename the damaged or corrupted file so that it is not deleted when you copy the original file. To do this, type the following command:

ren USER32.DLL USER32.BAK

Step7:Next, restore the original User32.dll file from the Windows CD to your computer. To do this, type the following command:

expand [CD drive letter]:\i386\USER32.DLL %systemroot%\system32 /Y

Note In this command, replace [CD drive letter] with the letter of your CD drive, such as D.

Step8:To exit the Recovery Console and to restart the computer, type exit at the command prompt, and then press ENTER.

Method 2: Use the System File Checker tool to repair User32.dll

System File Checker lets you scan all protected files to verify their versions. If System File Checker discovers that a protected file has been overwritten, it retrieves the correct version of the file from the cache folder (%Systemroot%\System32\Dllcache) or from the Windows installation source files, and then replaces the incorrect file. You must be logged on as an administrator or as a member of the Administrators group to run System File Checker.

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