Hello John,
could you please share a little bit more of information?
which of the databases is corrupt? (unba_slave, unba_master, config_db ....)
Is only NTA affected, or your complete IMC Installation?
What error message do you get? (duplicate symbols, unable to connect to database ....)
You can check this in the following folder (C:/Windows/iMC-Reserved/log/dbresult_<timestamp>.log
Do you have new installed IMC, or do you still need assistence?