On a clean install (downloaded 2017.09.23) install gets stuck on clicking on using an existing account. Another window pops up but remains blank. While my laptop does have a proxy setup for work, I am currently not behind that firewall. None of the suggestions I was able to find worked on the Community pages helped.
In the comments for SRCTREEWIN-7244 Karl Jones' edit worked for me. Unfortunately I didn't notice his link to the example accounts.json file is on Wikileaks.org (I am sure I will hear about this from our network admins).
For Windows 10 edit the accounts.json file (hopefully Atlassian will provide one instead of having to install SourceTree on someone else's computer to get the file or having to resort to using the WikiLeaks file) with your Atlassian user name and put it C:\Users\YourUserNameHere\AppData\Local\Atlassian\SourceTree and in the same directory create an empty text file named passwd.
Can you please see https://community.atlassian.com/t5/Sourcetree-questions/Installation-of-SourceTree-cannot-be-completed-because-of/qaq-p/621375?utm_campaign=kudos_answer&utm_content=topic&utm_medium=email&utm_source=atlcomm
There are a 3 potential solutions outlined there:
The most like is probably compatibility settings:
"It turns out compatibility mode in IE11 in Win10 v1703 blocks the page. Turned it off and it’s fine now."
"could you try changing your Internet Explorer Security Zone Settings?
Hello everyone, could you try the following workaround:
After loggin in, follow steps 1-5, but reset the setting back to the previous option."
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