Posted May 19, 2015
It looks like the base problem is that the updater is looking in the registry for your copy of the game. If it can't find it, it just fails blindly.
Go to play.thewitcher.com and download the installer. While you're waiting, do the following:
Save the following text as a .reg file (not as a .txt file) in notepad by copying it from here, pasting it into notepad, changing the drive letters to suit your own PC, then saving the file. Use "witcher_fix.reg" as the file name, and select "All files *.*" from the dropdown list below.
Then double-click on the file, accept the registry editor warning and let it update itself. Run the installer and enjoy!
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\GOG.com]
"DefaultPackPath"="D:\\GOG Games\\"
"DesktopIcon"="ON"
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\GOG.com\Games]
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\GOG.com\Games\1207664643]
"PATH"="D:\\GOG Games\\The Witcher 3 Wild Hunt"
"GAMENAME"="The Witcher® 3: Wild Hunt"
"STARTMENULINK"="C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Programs\\The Witcher® 3 - Wild Hunt [GOG.com]\\The Witcher® 3 - Wild Hunt"
"STARTMENUFOLDER"="C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Programs\\The Witcher® 3 - Wild Hunt [GOG.com]"
"GOGGAMEDLL"="goggame-1207664643.dll"
"GUID"="{BF679CAD-FE6D-4CBE-9E99-D7193809207A}"
"BUILD"="28"
"STARTMENU"="The Witcher 3 Wild Hunt"
"gameID"="1207664643"
"uninstallCommand"="D:\\GOG Games\\The Witcher 3 Wild Hunt\\unins000.exe"
"DEPENDSON"=""
"DLC"=""
"INSTALLDATE"="2015-05-16 14:33:11"
"VER"="2.0.0.28"
"SUPPORTLINK"="the_witcher_3_wild_hunt"
"LANGUAGE"="english"
"SAVEGAMEFOLDER"="D:\\GOG Games\\The Witcher 3 Wild Hunt\\"
"LAUNCHPARAM"=""
"LAUNCHCOMMAND"="D:\\GOG Games\\The Witcher 3 Wild Hunt\\bin\\x64\\witcher3.exe "
"EXE"="D:\\GOG Games\\The Witcher 3 Wild Hunt\\bin\\x64\\witcher3.exe"
"EXEFILE"="witcher3.exe"
"WORKINGDIR"="D:\\GOG Games\\The Witcher 3 Wild Hunt\\bin\\x64\\"
"SKU"="GOG"
"languageText"="english"
"languageVoiceover"="english"
Go to play.thewitcher.com and download the installer. While you're waiting, do the following:
Save the following text as a .reg file (not as a .txt file) in notepad by copying it from here, pasting it into notepad, changing the drive letters to suit your own PC, then saving the file. Use "witcher_fix.reg" as the file name, and select "All files *.*" from the dropdown list below.
Then double-click on the file, accept the registry editor warning and let it update itself. Run the installer and enjoy!
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\GOG.com]
"DefaultPackPath"="D:\\GOG Games\\"
"DesktopIcon"="ON"
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\GOG.com\Games]
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\GOG.com\Games\1207664643]
"PATH"="D:\\GOG Games\\The Witcher 3 Wild Hunt"
"GAMENAME"="The Witcher® 3: Wild Hunt"
"STARTMENULINK"="C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Programs\\The Witcher® 3 - Wild Hunt [GOG.com]\\The Witcher® 3 - Wild Hunt"
"STARTMENUFOLDER"="C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Programs\\The Witcher® 3 - Wild Hunt [GOG.com]"
"GOGGAMEDLL"="goggame-1207664643.dll"
"GUID"="{BF679CAD-FE6D-4CBE-9E99-D7193809207A}"
"BUILD"="28"
"STARTMENU"="The Witcher 3 Wild Hunt"
"gameID"="1207664643"
"uninstallCommand"="D:\\GOG Games\\The Witcher 3 Wild Hunt\\unins000.exe"
"DEPENDSON"=""
"DLC"=""
"INSTALLDATE"="2015-05-16 14:33:11"
"VER"="2.0.0.28"
"SUPPORTLINK"="the_witcher_3_wild_hunt"
"LANGUAGE"="english"
"SAVEGAMEFOLDER"="D:\\GOG Games\\The Witcher 3 Wild Hunt\\"
"LAUNCHPARAM"=""
"LAUNCHCOMMAND"="D:\\GOG Games\\The Witcher 3 Wild Hunt\\bin\\x64\\witcher3.exe "
"EXE"="D:\\GOG Games\\The Witcher 3 Wild Hunt\\bin\\x64\\witcher3.exe"
"EXEFILE"="witcher3.exe"
"WORKINGDIR"="D:\\GOG Games\\The Witcher 3 Wild Hunt\\bin\\x64\\"
"SKU"="GOG"
"languageText"="english"
"languageVoiceover"="english"
Post edited May 19, 2015 by Nanocephalic