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Thunderbird

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latest update has locked out my email get message to close old version I have tried reloading then deleting all that is lest on PC is file under programmes86 is thunderbird/to be deleted [which cannot be deleted

latest update has locked out my email get message to close old version I have tried reloading then deleting all that is lest on PC is file under programmes86 is thunderbird/to be deleted [which cannot be deleted

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reloaded this morning now works ok