(N23) Operating System part3 RUN Commands, Services Management, Registry

20230502 152231
RUN Command – Start/Win + R .msc - microsoft console
Disk Management - diskmgmt.msc
Computer Management - compmgmt.msc
Event Viewer/Management - eventvwr.msc
Service Management - services.msc
Device Management - devmgmt.msc
Local Group Policy - gpedit.msc not in home editions
Local Users and Group - lusrmgr.msc may not in home editions

Control Panel - control .cpl – control panel
Add/remove programs or Programs and features - appwiz.cpl
Network Connections / Adaptors - ncpa.cpl
Windows Defender Firewall - firewall.cpl

Registry - regedit.exe
Task Manager - taskmgr
Notepad
Calc - calculator
%temp%, temp, prefetch
C:, C:\Program Files

*BATCH files - .bat file, ex a.bat
Execute series of commands in single .bat file
Add a series of commands in .bat file, run the .bat file , the commands in .bat file executes



*Window - CMD
C:\) /? Or C:\help
MD - CREATE DIRECTORY
CD CHANGE DIRECTORY
COPY - COPY FILE/S FROM ONE PLACE TO ANOTHER
MOVE - MOVE FILE/S FROM ONE PLACE TO ANOTHER
RENAME
TYPE - CHECK FILE CONTENT
DEL
RM -R
RMDIR
COPY CON FILENAME – CREATE A FILE
TASKLIST
TASKKILL
PING
TRACERT
NETSH
TIME , TIME /T
DATE , DATE /T
—--------------------------------------------------------------
Service Management – Search/Run – services.msc
Services are belongs to Operating system, Application, Hardware, Service
Ex. Windows Update
Windows Time
DHCP Client
DNS Client
Bluetooth
OracleServiceXE Oracle 21c Express edition
MySQL80 MySQL 8
Hyper-V
Application Identity – AppLocker
Startup Types:
Automatic - PC Starts/Booted/Login - Service starts automatically
Manual - user will start service manually , or by open related application , by time triggers
Disabled - service never starts










Registry Run/Search - regedit.exe – Registry Editor

registry - contains information of the entire system, hardware, operating system, application, user, user settings..
It controls function of system

oracle 21c xe installation interrupted, failed
Again i try to install , system telling -- already installed..issue
even delete files in the installation location.

registry editor - find oracle 21c related entries - delete , restart PC
Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Oracle\KEY_OraDB21Home2
try to install oracle 21c again