Any Operating Systems such as any Windows and any MAC OS X Installation and setups (Prefer to work on Windows Computers) Their Management such as Settings and tweaks for custom special needs. Automatic Backup system knowledge that comes from Server Backup systems by using 3rd Party Software to keep custom settings and Data safe any time.
So far I have knowledge and experience of 8 (in my company) + 4(freelancer) years for personal and business purpose computers with every single version of mac setups and windows setups with their tweaks.
