NSIS scripts can request Windows to avoid registry writes?
In https://trac.torproject.org/projects/tor/ticket/7842#comment:20, Runa mentioned that NSIS scripts can request to avoid writing to the Windows registry.
We should figure out how to do this and use those settings in the TBB Windows NSIS scripts (which live at https://github.com/moba/tbb-windows-installer).