You can also press ⊞ Win+R in any version. If you can't open the Start menu, see the next section.   Windows 8 - Open the Start screen and type run, or find Run in the All Apps list.  Windows 8.1 - Right-click the Start button and select "Run".  Windows 10 - Right-click on the Start button logo and select "Run". regedit into the Run box and press ↵ Enter. This will start the Registry Editor.  Depending on your computer's security settings, you may be prompted to confirm that you want to start the Registry Editor. You can also type this into the Start search feature. Access to the Registry Editor requires administrator permissions. Use the menu on the left side of the Registry Editor to find the keys you need. Many folders will contain multiple levels of subfolders. Keys in each folder will be displayed in the right frame. When you double-click a key in the right frame, a window will appear allowing you to edit the values. You should only edit keys if you know what you are doing or are following qualified instruction. Modifying keys will change how your system runs, and could cause Windows to malfunction.  Click here for more tips on safely editing the registry.

TL;DR in Indonesian:
Klik menu Start, lalu pilih "Run". Ketik regedit pada kotak Run, dan tekan ↵ Enter untuk membuka Registry Editor. Jelajahi entri Registry. Sunting kunci dengan mengeklik ganda pada kunci tersebut.