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The '''Wii System Menu''' (also called '''Wii Menu''' or '''System Menu''') is the primary graphical interface of the Wii console. It provides access to all of the Wii's main system functions on retail units, including launching titles from a disc, launching channels on the Wii's NAND, save data and title management, adjusting system settings, and the Wii Message Board. On development systems, the [[Devkit Boot Program]] is preinstalled instead of the Wii Menu (but the retail menu can still be installed using a [[Wii Menu Changer]] disc).

The '''Wii System Menu''' (also called '''Wii Menu''' or '''System Menu''') is the primary graphical interface of the Wii console, developed by [[Nintendo EAD]]. It provides access to all of the Wii's main system functions on retail units, including launching titles from a disc, launching channels on the Wii's NAND, save data and title management, adjusting system settings, and the Wii Message Board. On development systems, [[boot-IRD]] is preinstalled instead of the Wii Menu (but the retail menu can still be installed using a [[Wii Menu Changer]] disc).

There are five different regional versions of the Wii Menu, indicated by the letter after the version number displayed in the system settings:

There are five different regional versions of the Wii Menu, indicated by the letter after the version number displayed in the system settings:

*4.3 (final released version, patches [[Bannerbomb]] v2)

*4.3 (final released version, patches [[Bannerbomb]] v2)

== 1.0 RC1 ==

==1.0 RC1==

[[File:WiiSysMenu 1.0RC1.png|thumb]]

[[File:WiiSysMenu 1.0RC1.png|thumb]]

On October 17, 2020, a prerelease version of the retail menu (seemingly US version) was found in the [[Zammis Clark Breach]] data. The filename of the disc image which includes it indicates that this is likely "1.0 RC1" or "1.0 RC1.1", although the title version number (v33) is the same as final 1.0. This menu was built on Sep 24, 2006; roughly 2 weeks before the final version.

On October 17, 2020, a prerelease version of the retail menu (seemingly US version) was found in the [[Zammis Clark Breach]] data. The filename of the disc image which includes it indicates that this is likely "1.0 RC1" or "1.0 RC1.1", although the title version number (v33) is the same as final 1.0. This menu was built on Sep 24, 2006; roughly 2 weeks before the final version.

Differences include:

Differences include:

* By default, the menu will boot to a black screen and only respond if a disc is inserted. To access the actual menu, Z must be held in GameCube port 4 at boot.

*By default, the menu will boot to a black screen and only respond if a disc is inserted. To access the actual menu, Z must be held in GameCube port 4 at boot.

* There is a timestamp on the Health & Safety screen.

*There is a timestamp on the Health & Safety screen.

* Some minor sound and graphical assets are different.

*Some minor sound and graphical assets are different.

* The settings menu is mostly unlocalized, although the localized settings data is present in the files but unused.

*The settings menu is mostly unlocalized, although the localized settings data is present in the files but unused.

* Many text strings are unlocalized or unfinalized.

*Many text strings are unlocalized or unfinalized.

* Error screens are rough and unfinished.

*Error screens are rough and unfinished.

* Empty channel slots can be highlighted with the cursor.

*Empty channel slots can be highlighted with the cursor.

* Entering the Data Management menu for Wii save data causes a crash; the reason for this is currently unknown.

*Entering the Data Management menu for Wii save data causes a crash; the reason for this is currently unknown.

* Some animation oddities are present, such as the menu briefly showing the Message Board when entering Wii Options.

*Some animation oddities are present, such as the menu briefly showing the Message Board when entering Wii Options.

* The button to launch on the Disc Channel is not greyed out when a disc is not inserted (pressing it just gives an error sound).

*The button to launch on the Disc Channel is not greyed out when a disc is not inserted (pressing it just gives an error sound).

* Onscreen debug output is present in some setting menus.

*Onscreen debug output is present in some setting menus.

==Regional Differences==

==Regional Differences==