Really appreciate you posting the regkey modifications. There were a number of errors that I ended up having to troubleshoot. Hereâs the latest version with a windows 10 pro build 1803.
Generate new guid from guidgen.com and find & replace the guid below. Add it to a .reg file and merge.
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Classes\Wow6432Node\CLSID\{3e8f3a4e-9013-44e9-8413-d4117aed930e}]
@="Nextcloud"
"System.IsPinnedToNamespaceTree"=dword:00000001
"SortOrderIndex"=dword:00000042
[HKEY_CURRENT_USER\Software\Classes\Wow6432Node\CLSID\{3e8f3a4e-9013-44e9-8413-d4117aed930e}\InProcServer32]
@=hex(2):25,00,73,00,79,00,73,00,74,00,65,00,6d,00,72,00,6f,00,6f,00,74,00,25,\
00,5c,00,53,00,79,00,73,00,57,00,6f,00,77,00,36,00,34,00,5c,00,73,00,68,00,\
65,00,6c,00,6c,00,33,00,32,00,2e,00,64,00,6c,00,6c,00,00,00
[HKEY_CURRENT_USER\Software\Classes\Wow6432Node\CLSID\{3e8f3a4e-9013-44e9-8413-d4117aed930e}\ShellFolder]
"FolderValueFlags"=dword:00000028
"Attributes"=dword:f080004d
[HKEY_CURRENT_USER\Software\Classes\CLSID\{3e8f3a4e-9013-44e9-8413-d4117aed930e}]
@="Nextcloud"
"System.IsPinnedToNamespaceTree"=dword:00000001
"SortOrderIndex"=dword:00000042
[HKEY_CURRENT_USER\Software\Classes\CLSID\{3e8f3a4e-9013-44e9-8413-d4117aed930e}\InProcServer32]
@=hex(2):25,00,73,00,79,00,73,00,74,00,65,00,6d,00,72,00,6f,00,6f,00,74,00,25,\
00,5c,00,73,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,73,00,68,00,\
65,00,6c,00,6c,00,33,00,32,00,2e,00,64,00,6c,00,6c,00,00,00
[HKEY_CURRENT_USER\Software\Classes\CLSID\{3e8f3a4e-9013-44e9-8413-d4117aed930e}\ShellFolder]
"FolderValueFlags"=dword:00000028
"Attributes"=dword:f080004d
[HKEY_CURRENT_USER\Software\Classes\Wow6432Node\CLSID\{3e8f3a4e-9013-44e9-8413-d4117aed930e}\DefaultIcon]
@="C:\\Program Files (x86)\\Nextcloud\\nextcloud.exe,0"
[HKEY_CURRENT_USER\Software\Classes\Wow6432Node\CLSID\{3e8f3a4e-9013-44e9-8413-d4117aed930e}\Instance]
"CLSID"="{0E5AAE11-A475-4c5b-AB00-C66DE400274E}"
[HKEY_CURRENT_USER\Software\Classes\Wow6432Node\CLSID\{3e8f3a4e-9013-44e9-8413-d4117aed930e}\Instance\InitPropertyBag]
"Attributes"=dword:00000011
"TargetFolderPath"=hex(2):25,00,55,00,53,00,45,00,52,00,50,00,52,00,4f,00,46,\
00,49,00,4c,00,45,00,25,00,5c,00,4e,00,65,00,78,00,74,00,63,00,6c,00,6f,00,\
75,00,64,00,00,00
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\HideDesktopIcons\NewStartPanel]
"{3e8f3a4e-9013-44e9-8413-d4117aed930e}"=dword:00000001
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Desktop\NameSpace\{3e8f3a4e-9013-44e9-8413-d4117aed930e}]
@="Nextcloud"
[HKEY_CURRENT_USER\Software\Classes\CLSID\{3e8f3a4e-9013-44e9-8413-d4117aed930e}\DefaultIcon]
@="C:\\Program Files (x86)\\Nextcloud\\nextcloud.exe,0"
[HKEY_CURRENT_USER\Software\Classes\CLSID\{3e8f3a4e-9013-44e9-8413-d4117aed930e}\Instance]
"CLSID"="{0E5AAE11-A475-4c5b-AB00-C66DE400274E}"
[HKEY_CURRENT_USER\Software\Classes\CLSID\{3e8f3a4e-9013-44e9-8413-d4117aed930e}\Instance\InitPropertyBag]
"Attributes"=dword:00000011
"TargetFolderPath"=hex(2):25,00,55,00,53,00,45,00,52,00,50,00,52,00,4f,00,46,\
00,49,00,4c,00,45,00,25,00,5c,00,4e,00,65,00,78,00,74,00,63,00,6c,00,6f,00,\
75,00,64,00,00,00