make a copy of your wallet (not perse needed but better safe then sorry) C:\user\appdata\roaming\armory\wallet file
you should get the latest version from this thread
https://bitcointalk.org/index.php?topic=1896808.0 it is a sticky in this forum.
Then install bitcoin core from their official page, let it sync, that will take a while and takes about 150G of disc space atm.
After it is sync'd start armory (in armory file>settings> uncheck "Let armory run bitcoin core/bitcoind in the back ground) and let armory sync.
It is gonna take a while depending on your set up, but once done you are good to go.