Lightroom 5 will not open and gives me a message saying it encountered an error reading from its preview cache. [was: Lightroom 5 question]

@Lightroom 5 will not open and gives me a message saying it encountered an error reading from its preview cache.

This is the Photoshop forum however.
Close Lightroom and go to your Lightroom catalog folder.
The default location is usually in Pictures.
Delete the file in the catalog folder which ends Previews.lrdata
Do not touch the catalog itself which ends.lrcat
Then try re-launching Lightroom.

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    robmac76 wrote:
    can you tell me step by step how to recify  this problem.
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    That's it!
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    HT1925: Removing and Reinstalling iTunes for Windows XP
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    Delete the preview cache using your operating system. It is a folder whose name ends with Previews.LRDATA. Do not delete the Lightroom catalog, which ends with .LRCAT

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    reset your preferences, Resetting (or 'Trashing') the Lightroom Preferences file - Lightroom Forums

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