Now that mobile carriers around the world are beginning to roll out updates to Windows Phone, many Windows PC users are finding that the update(s) cannot be installed because they encounter an error.
The error, commonly 801811A5 for those who are interested, is caused by the Zune desktop software hasn't enabled a particular service in Windows when you've set up your Windows Phone. Fortunately it's extremely easy to fix.
If you find that your Windows Phone won't update when it's telling you that an update is available, follow these simple instructions.
Starting the service will help make sure the current update will install, but additionally changing the startup type to automatic (you will probably find it's currently set to manual) will prevent the error from recurring.Advertisement
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