uTorrent is arguably the most popular torrent client in existence. It is also the most lightweight (i.e. does not slow your system down), which explains why its creators call it the "most lightweight and efficient BitTorrent client). If you are new to downloading torrents, it may be hard to understand what settings will be the best for the client.
Open the "Options" menu in uTorrent and select "Preferences." This is where the main settings for uTorrent are located. To start, customise the settings on the "General" page. Select your language in the pull-down menu. Next, ensure the "Check association on start-up" button is selected. If you wish to have uTorrent start on system start-up, check that box as well. Finally, check the "Prevent standby if there are active torrents" box on the bottom; leave all others blank.
UI Settings and Directories
Select the UI settings option. Ensure the following boxes are checked: Confirm when deleting torrents, confirm when deleting trackers, alternate list background colour, show speed limits in the status bar, and show current speed in title bar. In addition, ensure that every box under the system tray section is checked (close to tray, minimise to tray, and so on). Next, check to make sure the "Don't start the download automatically" box is checked. In the directories settings, create a folder to place new downloads. In addition, ensure the store .torrents, move .torrents, and automatically load .torrents boxes are checked and that they each have a directory.
Connection and Bandwidth
Select the next setting in the list: Connection. Click the random port button as any port will do. Check every box under the listening port section (Enable UPnP port mapping, Randomize port each start, etc.) Next, select the Bandwidth setting. Ensure that you have a maximum upload rate of 80. Select the alternate upload rate when now downloading box and type 85 into the box. Next, check to make sure there is a maximum download rate of 250, the global maximum number of connections is 375, the maximum number of connected peer per torrent is 100, and the number of upload slots per torrent is 4. Finally, check the "Use additional upload slots if upload speed < 90%" box.
BitTorrent, Queueing, and Scheduler
Select the BitTorrent option. Simply ensure that every box under "Basic BitTorrent Features" is checked. In addition, change the outgoing protocol encryption to forced. Next, set the queuing settings. Ensure the maximum number of active torrents are set to 8, the maximum number of active downloads are set to 7, the ratio is set to 101%, the seeding time is 0, and the limit the upload rate checkbox is checked with a 0 set to the right. Finally, select the scheduler option. If you wish to schedule a time in which uTorrent will run, feel free to do so. If you wish for uTorrent to run all the time or only when you open the program, deselect "Enable Scheduler."
Web UI and Advanced
Select Web UI. Deselect the Web UI checkbox if not already unchecked. Next, select the Advanced option and scroll down until you see the following name: "name bt.no_connect_to_services_list." Starting at this name and ending with the name "diskio.coalesce_writes," ensure the following values are entered in this order:
Finally, click "Apply" and press "OK."
After you have entered these settings, your uTorrent client should be running at its best. You may also wish to fine-tune the settings via port forwarding. There are links in the Resources section that describe how to properly set up this option.