See this FAQ. It says....you can download your software directly from TurboTax. But, keep in mind, you can't use both the CD and the download — you must use or or the other.
https://ttlc.intuit.com/community/installing/help/i-bought-the-cd-but-my-computer-doesn-t-have-a-cd-...
Another user posted this. If you have a computer with a CD drive or know someone, you can try copying the CD to a USB flash drive and use that to install the program.
Yes I had trouble installing from the Costco CD last year for 2020. I installed the CD on my Desktop computer then tried to install it on my new laptop with an external CD reader. It didn't work. I had to ask for the download and a new code. They put it in my online account.
Then for this year 2021 I knew what to do. I bought the CD at Costco again but used the Download method to install it. Then I could install it on both my computers.
