I can't install Plays.Tv, it ''installs'' pretty fast and when it's ''done'' it just closes down and that's it. I can't find it after that.. I'm on Windows 10 (64).
Do you know if this is the Plays Beta version, or the legacy client?
(Plays Beta downloads automatically from the download page, while the legacy client requires you to manually click on the link)
I would ensure that it's not being blocked by a firewall or antivirus. I believe it already opens as Administrator so no need for that step.
Do you remember specifically at what step it fails?
I just re-downloaded and reinstalled the legacy client to try it out.
First I got this image:
Then very soon after it looked like this:
After that, it finished the installation. So this doesn't appear to be a wide-spread issue since I can't reproduce it.
Does anything appear in in your Playstv appdata folder?