Hi Sergei,
> I'd like to clarify: how can I check it if TestComplete is not installed in Win8?
Not sure that I got your question, but if you are asking about tests debugging, then, unfortunately, TestExecute provides no means for this.
Your options are:
-- Either install TestComplete on the given machine and use it (TestComplete) for tests debugging; or
-- Implement extended logging in script code (this can be done with any editor as script units in TestComplete are plain text/unicode files) and output to the log anything that you need to understand where and why the test fails/crashes.
