I'm trying to access my 2016 taxes. Please help....

You have to sign onto your 2016 online account using the exact same user ID you used to create the account.

Close all TurboTax windows on your web browser (including this one).  Copy and paste the account recovery website link onto a new web browser window and run the tool.

Use this TurboTax account recovery website to get a list of all the user ID's for an email address.  Run the tool against any email addresses you may have used - https://myturbotax.intuit.com/account-recovery

If none of the user ID's received will access your 2016 account, then use the option shown in blue on the account recovery website, "Try something else"

I'm trying to access my 2016 and 2017 tax programs which I have on my computer, but it says they are running under another account.  I tried turning the system off and back on but to no avail.  It said the same thing.  Can you help me to access those programs?