Fix Uxtheme.dll Errors

Uxtheme.dll is a Windows XP DLL file that is used to control the theming engine in Windows. This means that this file is used to control the various Windows themes that you can apply to your computer.

In this article, we will discuss errors that may occur on your Windows computer due to issues with the uxtheme.dll file.

Uxtheme.dll related errors in Windows Vista

Error 1

When you restart your Vista computer after uninstalling a third-party theme program, you may find that your theme resets to Windows Basic.

Cause of the Error

Generally, this issue occurs when a third-party theme application modifies or damages the Windows uxtheme.dll file.

Error 2

When you start your Vista computer, you may receive the following error message:

“The application or DLL C:\windows\system32\uxtheme.dll is not a valid Windows image. Please check this against your installation diskette.”

When you click the OK button the desktop icons may temporarily disappear.

Cause of the Error

Typically, the above error occurs when the uxtheme.dll file is missing from your computer.

Solution

To fix uxtheme.dll error, perform the following steps:

  1. Click the Start menu and type CMD in the Start Search box.
  2. In the Programs list, right-click cmd and then select Run as administrator.
  3. Next, type sfc/scannow and press Enter to replace damaged Window files.

If this does not work, download the missing uxtheme.dll file from a reliable and trustworthy free online DLL directory or another computer with similar configuration as yours and then replace the file on your computer.

Uxtheme.dll related errors in Windows XP

Error 1

After you install Windows XP Service Pack 3 (SP3), you may find that third-party theme programs are either not working properly or generating errors.

Cause of the Error

The above problem occurs when a third-party theme program replaces the version of the uxtheme.dll file Windows XP installed on your computer with an older or incompatible version.

Solution

To fix uxtheme.dll error, obtain a copy of the uxtheme.dll file from the third-party program vendor that is compatible with Windows XP Service Pack 3 (SP3).

Error 2

On a Windows XP Service Pack 2 (SP2) computer, the horizontal bar that is used in forms stops responding to mouse controls or actions when using themes.

Cause of the Error

This uxtheme.dll issue occurs when the code in uxtheme.dll file incorrectly calculates the horizontal bar position in the form.

Solution

To repair uxtheme.dll error, download the hotfix released by Microsoft to address this specific problem.

Other common reasons behind uxtheme.dll errors are – malware infection and registry issues.

Malware programs, such as virus, worm, and trojan deliberately corrupt DLL files, such as uxtheme.dll by deleting or adding invalid codes into the DLL file. To fix uxtheme.dll errors due to malware infection, perform a malware scan on your entire system, using reliable and advanced protective software, such as STOPzilla Antivirus and Spyware Cease.

In addition to malware programs, a corrupt registry is another major cause of recurring uxtheme.dll errors. To prevent uxtheme.dll errors due to registry issues, regularly scan your system registry, using reliable registry cleaning software, such as RegServe.