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Windows 10 upgrade has jammed Thunderbird upgrade

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Upgraded Windows 10 to 1709 upgrade. When it had finished Thunderbird was not on the desktop but an update icon was there. Clicked on it and it said "Your computer must be restarted to complete a previous upgrade of Thunderbird. Do you want to re-boot now" Restarting does nothing and you get the same icon and message. Tried removing program from PC but get the same message Tried re-installing new version of Thunderbird and get the same message.

Upgraded Windows 10 to 1709 upgrade. When it had finished Thunderbird was not on the desktop but an update icon was there. Clicked on it and it said "Your computer must be restarted to complete a previous upgrade of Thunderbird. Do you want to re-boot now" Restarting does nothing and you get the same icon and message. Tried removing program from PC but get the same message Tried re-installing new version of Thunderbird and get the same message.

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It has now done the same thing on a laptop after an Windows 10 upgrade

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Have restored Windows back to previous version and Thunderbird has reappeared but is now involved in some sort of update

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Thunderbird Version 52.5.0.

Thunderbird has started working again and is currently on the 52.5.0 build dated 23rd November.