You may experience slow system performance when you view multipage .tiff files in Windows Live Photo Gallery. Additionally, the memory usage increases significantly.
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After Windows Live Photo Gallery finishes rendering the first of several images on the screen, it immediately starts to load the next image. This process is known as precaching. If an image is a multipage .tiff file, Windows Live Photo Gallery processes the complete file. This process may take awhile, depending on the size of the .tiff file. An issue with how precaching is implemented causes lots of system resources to be used. This behavior causes the symptoms that are described in the "Symptoms" section.
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Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall the operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.
Disable precaching in Windows Live Photo Gallery to resolve this issue.
Note When precaching is disabled, it takes longer than before to move through the images in Windows Live Photo Gallery. But you do not experience the symptoms that are described in the "Symptoms" section.
To disable precaching in Windows Live Photo Gallery for Windows Vista, follow these steps:
| 1. | Click Start
, and then type regedit in the Start Search box. 
If you are prompted for an administrator password or for a confirmation, type the password, or click Allow.
|
| 2. | Locate and then click the following registry subkey:
HKEY_CURRENT_USER\Software\Microsoft\Windows Live\ Photo Gallery\Viewer. |
| 3. | Click Edit, point to New, and then click DWORD (32-bit) Value. |
| 4. | In the New Value #1 box, type CacheSize, and then press ENTER. |
| 5. | Right-click CacheSize, and then click Modify.
|
| 6. | In the Value data box, type 0, and then click OK. |
| 7. | Close Registry Editor. |
To disable precaching in Windows Live Photo Gallery for Windows XP, follow these steps:
| 1. | Click Start, click Run, and then type regedit. |
| 2. | Locate and then click the following registry subkey:
HKEY_CURRENT_USER\Software\Microsoft\Windows Live\ Photo Gallery\Viewer. |
| 3. | Click Edit, point to New, and then click DWORD Value.
|
| 4. | In the New Value #1 box, type CacheSize, and then press ENTER. |
| 5. | Right-click CacheSize, and then click Modify.
|
| 6. | In the Value data box, type 0, and then click OK.
|
| 7. | Close Registry Editor. |
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