I've just pre-patched for Season 10 and after everything was downloaded and installed by the launcher it failed with the following message:
Error 36: A file was locked that could not be open for writing. Restart in...
There is no cryptic processes running. Force verify did nothing to solve this. Downloading a new launcher did not solve this. Uninstalling and trying to reinstall via steam and arc did not solve this - in fact, now it won't even open the patcher at all without throwing a windows exception window
[X] A file was locked that could not be open for writing
The ERRORS.log shows this:
150417 18:44:31 2  ESC : The patchclientlib is internally recording error code : 36\nA file was locked that could not be open for writing - Could not rename file that could not be overwritten (L:/Games/Steam/SteamApps/common/Star Trek Online/Star Trek Online.exe)
150417 18:44:31 4  ESC : The patchclientlib is returning error code : 36\nA file was locked that could not be open for writing
150417 18:44:31 5 : Launcher PCL Error A file was locked that could not be open for writing
My forum searching showed that a possible fix was to:
Yoy Have to go were the game is instaled and DELETE or CUT and paste somewhere else the file "Star Trek Online.exe.deleteme"
then go to Task Manager and close the "Star Trek Online.exe" and restart the lancher and you will be all set
But I don't have that file. So I created a text file and changed the extension to .deleteme. Upon startup of the launcher it did delete it, but the issue was not resolved.