The Seiki SK720T driver install is not a single file but a process of hardware identification and generic driver matching. In most cases, the solution is forcing Windows to recognize the device as a HID-compliant touch screen or installing a Prolific PL-2303 legacy driver. Seiki never provided direct support, but the universal driver ecosystem of Windows can resurrect this device.

If after two hours of troubleshooting nothing works, consider that your SK720T may be using a proprietary protocol for an extinct kiosk system. Part it out or replace it with a modern 7-inch USB touch display from Waveshare or Elecrow—both come with actively maintained drivers.

Final Tip: Join a legacy hardware forum (like Reddit’s r/techsupport or Badcaps.net) and post your Hardware ID string. The community will identify the exact chipset and point you to a working driver within 24 hours.

This article is provided for informational purposes. Always back up your system before installing legacy drivers. The author is not affiliated with Seiki or Prolific.

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If you possess the original compact disc that shipped with the SK720T, do not run Setup.exe blindly. Instead:

If the CD is lost, search for archived ISOs on Internet Archive (archive.org) using the search term "Seiki SK720T CD ISO" or "SK720T driver archive". Be extremely cautious with executable files from unknown sources.

Result: Your touch will likely work with basic single-touch gestures. If not, the touch controller needs a specific serial driver (see Method 3).

If the official seiki sk720t driver install proves impossible, use these tested generic drivers:

If you see an exclamation mark next to "Seiki" or "Unknown Device" in Windows Device Manager, follow these steps. This usually fixes HDMI Audio or EDID communication errors.

Step 1: Access Device Manager

Step 2: Locate the Device

Step 3: Update the Driver Automatically

Step 4: Manual Installation (If Automatic Fails) If Windows cannot find a driver:

This is the easiest method and should be tried first.

If Windows Update does not find a driver, you can force Windows to use a generic driver that often works perfectly with Seiki monitors, or manually select a driver if you have the downloaded file.

  • Right-click on the monitor listed and select Update driver.
  • Select Browse my computer for drivers.
  • Select Let me pick from a list of available drivers on my computer.
  • Scenario A (If you have a driver file):
  • Scenario B (Using Built-in Drivers - Recommended):
  • Once installed, close Device Manager and restart your computer.