There is no built-in export mechanism for installed extensions for Visual Studio. The easiest way to approach this problem is to simply write down the list of extensions and reinstall them as soon as you restart your machine.
One trick you can try is the following. Binary files for many , but not all, extensions are stored in
% USERPROFILE% \ AppData \ Local \ Microsoft \ VisualStudio \ 10.0 \ Extensions
You can simply pin this directory, save it somewhere, reinstall Windows + vs, and then unzip the file on a new computer. I don't know if this will work, but it might be worth a try.
Jaredpar
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