Hi.
I've tried running the installer (exe) over 10 times.
Each time, the installer's initial splash screen appears momentarily, only disappear.
Usually, it disappears without any follow-up.
On two occasions, the following error dialogue appeared.

Here is a pastebin of the setup log.
I began to experience issues with SourceTree after the major version number switch to 2.0 some months ago. I've tried re-installing on numerous occasions since then, never with any luck.
Any advice is much appreciated - SourceTree is my #1 choice of Git client!
Thanks,
Oliver