Can you recover a system without the previous installer?+
Sometimes. The available recovery path depends on console ownership, credentials, backups, device state, and access to the physical network. We assess those facts first.
Do we have to replace everything?+
No. We prefer a measured plan that keeps reliable, supported equipment and replaces only what prevents the system from meeting the project goals.
Can you document the network after cleanup?+
Yes. A handoff can include device inventory, rack and port notes, network purpose, administrator ownership, and the key decisions needed for future support.