the cds for 2020 and prior are probably f no use. even if you kept 2020 all the prior years installed you may not be able to open the app if you try. It happened to me when i tried to open 2020. no update server. Also, they cannot be reinstalled because the update servers for those years are gone as is the ability if needed to first download state returns used that year. as @imnotrod you can purchase the CD for an additional $10
