Trying to set up echo dot using windows 10 No smartphone

Echo Dots can also be connected to your soundbar through an AUX (3.5mm) cable. This is because Dots are equipped with an AUX output port, and most soundbars have an AUX input. This is an easy, wired connection that is possible with a soundbar, as long as your soundbar and Dot are near one another (or you have a long AUX cable).
Here’s how to make your wired connection through an AUX cable:
Get a 3.5mm AUX cord. Make sure it is a good length
Open up your Amazon Alexa app on your smartphone
Select ‘Devices’ from the Main Menu Settings
Select your Dot by its name
Select ‘AUX Audio’, then ‘Line In or Line Out’
Connect your AUX cord to your Echo and your soundbar
Now you are connected through your AUX (3.5mm) cord, and any streaming or listening on your Echo Dot will come through your soundbar as long as both are powered on. If you ever want to listen to your Echo Dot through another device, simply disconnect the AUX cable from your soundbar.

English only please on this North American website please.

You can just ASK Alexa! Change the Time Format on Your Echo Dot with clock. Say "Change to 24-Hour clock".

Use the Alexa app to change the time format on your device.

1. Open the Alexa app .
2. Select Devices .
3. Go to Echo & Alexa, or to All Devices.
4. Select your Echo Dot with clock device. This opens device settings.
5. Under General, select LED Display.
6. Turn 24-Hour Clock on or off.

Change the Time Format on Your Echo Dot with clock

Before Set Up Alexa Echo, you will need to download the Alexa App in your smartphone.
After Download the Alexa App, Then you will plug in the device in power outlet.
Now open the Alexa App and choose the select the Add device.
Select now! the Amazon Echo device and add it.
You can select the Echo, Echo dot or other Echo plus, Echo Show and more option

And you will complete the process How to Setup Amazon Echo device.

hi roger.
see if this helps you out.

1. Turn on Echo Dot. Place your Echo Dot in a central location (at least eight inches from any walls and windows). ...
2. Connect Echo Dot to a Wi-Fi network. In the Alexa app, follow the instructions to connect Echo Dot to a Wi-Fi network. ...
3. Talk to Alexa. ...
4. Optional: Connect Echo Dot to an External Speaker.

Amazon.com Help: Set Up Your Echo Dot

https://www.amazon.com/gp/help/customer/display.html?nodeId=201994280
or if you need more help go to this link.
Setting up echo dot Google Search

If your Kindle Fire uses Fire OS 3.0 or higher, it should work, provided the Kindle has Wi-Fi capability.

if your laptop has functional Wi-Fi, you can also use your favorite web browser (Safari, Chrome, Firefox, Microsoft Edge, or Internet Explorer (10 or higher)) to set up through Amazon's Alexa page.
http://alexa.amazon.com/

For complete details, see the first section of "Amazon Help: Set Up Your Echo Dot."
Set Up Your Echo Dot

I don't think you can use a computer. I've tried. I also don't have a smart phone. I finally used my wife's smart phone to set it up. Good luck!

Check and make sure you follow all the steps it took to connect the first echo dot
Tips:
1. If the setup process does not automatically start, press and hold the Action button on Echo Dot for five seconds. Then, open the Alexa app, and go to Settings > Set up a new device.

2. If Echo Dot doesn't connect to your Wi-Fi network, restart Echo Dot by unplugging and plugging the device in again