Chromium Portable как браузер по умолчанию

Пути поправить на свои, сохранить в файл reg, запустить:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Clients\StartMenuInternet\Chromium]
@="Chromium"
[HKEY_LOCAL_MACHINE\SOFTWARE\Clients\StartMenuInternet\Chromium\Capabilities]
"ApplicationName"="Chromium"
"ApplicationIcon"="C:\\Program Files\\chrome-win\\chrome.exe,0"
"ApplicationDescription"="Chromium"
[HKEY_LOCAL_MACHINE\SOFTWARE\Clients\StartMenuInternet\Chromium\Capabilities\FileAssociations]
".xhtml"="Chromium"
".xht"="Chromium"
".shtml"="Chromium"
".html"="Chromium"
".htm"="Chromium"
[HKEY_LOCAL_MACHINE\SOFTWARE\Clients\StartMenuInternet\Chromium\Capabilities\StartMenu]
"StartMenuInternet"="Chromium"
[HKEY_LOCAL_MACHINE\SOFTWARE\Clients\StartMenuInternet\Chromium\Capabilities\URLAssociations]
"https"="Chromium"
"http"="Chromium"
"ftp"="Chromium"
[HKEY_LOCAL_MACHINE\SOFTWARE\Clients\StartMenuInternet\Chromium\DefaultIcon]
@="C:\\Program Files\\chrome-win\\chrome.exe,0"
[HKEY_LOCAL_MACHINE\SOFTWARE\Clients\StartMenuInternet\Chromium\shell]
[HKEY_LOCAL_MACHINE\SOFTWARE\Clients\StartMenuInternet\Chromium\shell\open]
[HKEY_LOCAL_MACHINE\SOFTWARE\Clients\StartMenuInternet\Chromium\shell\open\command]
@="\"C:\\Program Files\\chrome-win\\chrome.exe\""
[HKEY_LOCAL_MACHINE\SOFTWARE\RegisteredApplications]
"Chromium"="Software\\Clients\\StartMenuInternet\\Chromium\\Capabilities"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Chromium]
"URL Protocol"=""
@="Chromium"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Chromium\DefaultIcon]
@="C:\\Program Files\\chrome-win\\chrome.exe,0"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Chromium\shell]
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Chromium\shell\open]
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Chromium\shell\open\command]
@="\"C:\\Program Files\\chrome-win\\chrome.exe\" \"%1\""