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These 4 apps - Calendar, SkyDrive, Photos and Messaging crash on launching them almost always. I saw the Applications log and it redirected me to the TWinUI/Operational Log. In that log, it says Access Denied. What do I do? Please give me a solution which doesn't need me to refresh. Thanks

This problem has started around 1-2 weeks back.

sfc /scannow
says no resource integrity violations found

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Please post the important parts from the error log. – Ramhound Feb 4 '13 at 11:59
It just says Access Denied. Anyways a reinstall of my AV (KIS 13) has solved the issue. I think it was blocking the apps – pratnala Feb 5 '13 at 4:32
up vote 1 down vote accepted

It was a problem with my AV. Reinstalled it and cleaned the registry and everything is fine now

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