I double-click on any folder in My Computer, it opens in a new window

Problem:
Whenever I double-click on any folder in My Computer, it opens in a new window even I have selected the option “Always open folders in same window” in “Tools -> Folder Options

Solution:
Copy following code and paste it in Notepad then save the file with name “Haji.reg” (including quotes). After it run the file and confirm the action:

[HKEY_CLASSES_ROOT\Folder\shell]

[HKEY_CLASSES_ROOT\Folder\shell\explore]
“BrowserFlags”=dword:00000022
“ExplorerFlags”=dword:00000021

[HKEY_CLASSES_ROOT\Folder\shell\explore\command]
@=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,74,00,25,\
00,5c,00,45,00,78,00,70,00,6c,00,6f,00,72,00,65,00,72,00,2e,00,65,00,78,00,\
65,00,20,00,2f,00,65,00,2c,00,2f,00,69,00,64,00,6c,00,69,00,73,00,74,00,2c,\
00,25,00,49,00,2c,00,25,00,4c,00,00,00

[HKEY_CLASSES_ROOT\Folder\shell\explore\ddeexec]
@=”[ExploreFolder(\"%l\", %I, %S)]”
“NoActivateHandler”=”"

[HKEY_CLASSES_ROOT\Folder\shell\explore\ddeexec\application]
@=”Folders”

[HKEY_CLASSES_ROOT\Folder\shell\explore\ddeexec\ifexec]
@=”[]”

[HKEY_CLASSES_ROOT\Folder\shell\explore\ddeexec\topic]
@=”AppProperties”

[HKEY_CLASSES_ROOT\Folder\shell\open]
“BrowserFlags”=dword:00000010
“ExplorerFlags”=dword:00000012

[HKEY_CLASSES_ROOT\Folder\shell\open\command]
@=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,74,00,25,\
00,5c,00,45,00,78,00,70,00,6c,00,6f,00,72,00,65,00,72,00,2e,00,65,00,78,00,\
65,00,20,00,2f,00,69,00,64,00,6c,00,69,00,73,00,74,00,2c,00,25,00,49,00,2c,\
00,25,00,4c,00,00,00

[HKEY_CLASSES_ROOT\Folder\shell\open\ddeexec]
@=”[ViewFolder(\"%l\", %I, %S)]”
“NoActivateHandler”=”"

[HKEY_CLASSES_ROOT\Folder\shell\open\ddeexec\application]
@=”Folders”

[HKEY_CLASSES_ROOT\Folder\shell\open\ddeexec\ifexec]
@=”[]”

[HKEY_CLASSES_ROOT\Folder\shell\open\ddeexec\topic]
@=”AppProperties”

[-HKEY_CLASSES_ROOT\Directory\shell\explore]

[-HKEY_CLASSES_ROOT\Directory\shell\open]

[-HKEY_CLASSES_ROOT\Drive\shell\open]

[HKEY_CLASSES_ROOT\Drive\shell]
@=”none”

[HKEY_CLASSES_ROOT\Directory\shell]
@=”none”

[HKEY_CLASSES_ROOT\Folder\shell]
@=-