To send a free fax from your computer, you can use the following steps:

1. Go to a website that offers free fax services, such as ifaxapp.com or FAX.PLUS.
2. Create an account if necessary.
3. Enter the recipient’s fax number.
4. Fill out the fax cover sheet.
5. Attach the documents you wish to fax.
6. Click Send.

You can also send a fax from your computer by following these simple steps:

1. Sign up for a free account on FAX.PLUS.
2. Go to the Send Fax section and enter the recipient’s fax number.
3. Click on the Add File to attach the documents you wish to fax.
4. Send your fax right away and wait for the confirmation email.

If your computer is connected to a fax modem, you are able to fax straight from your Windows PC by following the step-by-step guide below:

1. Locate the search bar in the bottom-left corner of your screen.
2. Type in Fax and Scan, and then open Windows Fax and Scan.
3. Click New Fax and choose Connect to a fax modem in the pop-up menu.

There are other websites that offer free fax services such as GotFreeFax which allows you to send free faxes to any number in the USA or Canada.

I hope this helps!