System performance is slow when I view a multipage TIFF file by using Windows Photo Gallery in Windows Vista

When you view several multipage TIFF files in a row by using Windows Photo Gallery in Windows Vista, you may experience slow system performance. This article will help you fix the problem.

To have us fix this problem for you, go to the "Fix it for me" section. If you would rather fix this problem yourself, go to the "Let me fix it myself" section.

Note After the problem is fixed, moving through images in Windows Photo Gallery may be slower. However, you will not experience slow system performance.

To fix this problem automatically, click the Fix this problem link. Then, click Run in the File Download dialog box and follow the steps in this wizard.

Fix this problem
Microsoft Fix it 50050

Note This wizard may be in English only; however, the automatic fix also works for other language versions of Windows.

Note If you are not on the computer that has the problem, you can save the automatic fix to a flash drive or to a CD, and then you can run it on the computer that has the problem.

Important 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. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:

To fix this problem, disable precaching in Windows Photo Gallery.

To disable precaching in Windows Photo Gallery, follow these steps:

1. Click Start, and then click Run.
2. In the Open box, type regedit, and then click OK.
   
   
   Collapse this imageExpand this image

   
   If you are prompted for an administrator password or for confirmation, type your password, or click Continue.
3. Locate and then click the following registry subkey:
   HKEY_CURRENT_USER\Software\Microsoft\Windows Photo Gallery\Viewer
4. On the Edit menu, point to New, and then click DWORD (32-bit) Value.
5. In the New Value #1 box, type CacheSize, and then press ENTER.
6. Right-click CacheSize, and then click Modify.
7. In the Value data box, type 0, and then click OK.
8. Exit Registry Editor.

Check whether the problem is fixed. If the problem is fixed, you are finished with this article. If the problem is not fixed, you can contact support (http://support.microsoft.com/contactus) .

For help with system performance issues in Windows Vista, visit the following Microsoft web page:

Windows Photo Gallery starts to load the next image immediately after the first image has finished displaying on the screen. This process is also known as precaching. If the next image is a multipage TIFF file, Windows Photo Gallery processes the complete file. This process may take awhile, depending on the size of the TIFF file. Because of an issue with how precaching is implemented, too many system resources are used in this scenario. This behavior causes slow system performance and a significant increase in the computer's memory usage.