Proseries Program dissappeared from my computer what do I do

[PChin]

I just logged on to my computer.  Haven't used ProSeries 20 in several weeks.  The short cut icon is gone and File Explorer does not reflect the program.  All prior years are there.  When I try to log into 2019 it says my fast path has expired.  All the data files for 2020 are there.  What do I do.  I do have the discs and could download the program again - will it pull all my 2020 files in?

[Just-Lisa-Now-]

So in your Windows Programs menu, all the years are there except for 2020?

Do you have multiple Windows Logins? 

Did you recently have to do a Windows restore that took you back to a previous Windows backup?

[PChin]

Thank you.  I found out that my husband moved everything to a new drive - whew!  Strange thing was that 2020 disappeared from my desktop and I had to use my discs to reinstall and update and all is well.