Create a New Instance on the PC

1) SQL> Shutdown
2) SQL> EXIT
3) Windows Start
      Control Panel
         Administrative Tools
            Services
            - Stop all Oracle Services

4) Start
      All Programs
         Oracle - OraDB10gHome
            Configuration & Migration Tools
               Database Configuration Assistant

5) Delete database (PC only supports one instance)
6) Create database
      Ignore
      OK
      Yes
      Database Name (no underscores allowed)
      SID           (same as database name)
      Password
      -File System
    
   [x] Enable Archiving
    
   Oracle charges clients for the number of processes running

   Password Management
      Change SYS password to SYS
      Change System password to SYSTEM
      Change SCOTT password to TIGER

Show Parameter db_name;