I see that I'm not the only one with this problem.
On my Windows 10 64 bit machine both BitTorrent and uTorrent after a few hours becomes unresponsive. I'm using the latest version of BitTorrent. At first the program would freeze and show "not responding" in the upper left corner. I tried Windows Troubleshoot Compatibility and that reports that the program is not compatible with Windows 10 and runs it in Windows 8 mode. Now no more "not responding" and the GUI no longer freezes, but I can't click on anything, can't scroll, and the ad banner does not change. I'm running Windows 10 Enterprise Evaluation installed two weeks ago. Also same with Defender or Malwarebytes. The program does transfer file pieces, but I can't start another download. Event Viewer shows nothing. After a bit of searching I found someone posted that he installed an earlier version, like one earlier. He reports that the software now run OK, but wants to upgrade.
Where can I get a previous version and someway to stop the upgrade until this is fixed? Cheers