Make sure that your Logitech keyboard is a wired and not a wireless keyboard (Bluetooth, IR, or Wi-Fi) first! If it does happen to be a wireless keyboard, find or purchase a wired keyboard and try it again. Wired keyboards are available at most computer stores and even Walmart or Radio Shack for $10-$20 US. I would also go into your Dell laptop BIOS (use
<F2> key or similar) and disable the internal keyboard if it's not already disabled. This should fix the problem.
If the problem persists, there are a couple of things you can try. When you test your external keyboard on the laptop, use the
CMD or
POWERSHELL commands to get a DOS window and type your characters or test words in that window (
Black & White) and see if the characters come out correctly. If they do, they most likely your wired external keyboard (
USB) is working ok, but you have a problem with your W10 or your W10 language pack; it sounds like you might have installed the multi-language pack version of W10 instead of a single language pack. Did this Dell Inspiron come with W10 on it, or did you upgrade it from an earlier version of windows such as W7/W8x?? If so, did you do a W10 Clean Install after the original upgrade from the older version of Windows? If you did, where did you obtain the W10 bootable media ISO file or Disc from? It's possible that you used a copy from someone you borrowed it from, and it could be corrupted. Did this problem always occur since you bought the laptop? Or did it begin recently?
Also, are you logged in to the Microsoft Store using a Microsoft Account Login, and
NOT the Local W10 Login? If so, you can't properly download W10 apps from the Microsoft Store either free or fee-based unless you are logged on to W10 with a Microsoft Account Login. If you don't have one, you can create one while logged in with your Local W10 Account, give it a password and register it with your existing E-mail account (if not a Microsoft E-mail such as Hotmail, MSN, or Outlook.com), then switch over the Microsoft Account Login with your newly created credentials, and repeat your app downloads. That should fix it!
Let us know how you get on.
Best,
<<<<BIGBEARJEDI>>>>