How to fix: SourceTree won't start (Windows)

During windows update installation sometimes following cache files get corrupted and cause this issue: Assemblies.cache, Composition.cache

These files are present at following location:
C:\Users\<User>\AppData\Local\Atlassian\SourceTree.exe_<random_string>\<version_number>

<?php
echo 'yo';

Deleting above 2 files can resolve the issue. Sourcetree will generate these files when you re-run Sourcetree.