For the record, this helped me as well, I deleted the 4 _Url_ folders, then started sourcetree and was prompted for installation, closed that, restored the 4 deleted folders and now it started fine without anything being lost.
For the record, this helped me as well, I deleted the 4 _Url_ folders, then started sourcetree and was prompted for installation, closed that, restored the 4 deleted folders and now it started fine without anything being lost.