Double Click drive and folder Opens Search in Windows Explorer

It happen when you change

folder options
=>file type
=>folder, files and drive

It Happen when virus is infects
It happen when regestry change in =>HKEY_CLASSES_ROOT\Directory\shell
Solve
------------------------
start=>Run
type

regsvr32 /i shell32.dll

then enter
ok
It will solve

Folder Option Hiden Show

To Show the folder option in file menu bar.
1. Start=>Run=>gpedit.msc and enter
2. There User Configuration=> Administrator Templates=>Windows Components=>windows Explorer=> Remove Folder Options item from the tool menu=>double click=> 1st enable (apply) and Not define (apply)

or if your computer is infected with virus then
1. download the file enable Policies (policies) and extract it
Run safe mode.
2. right click 1.inf and install
3. right click 2.reg and merge
4 Start=>Run=>gpedit.msc and enter
5. There User Configuration=> Administrator Templates=>Windows Components=>windows Explorer=> Remove Folder Options item from the tool menu=>double click=> 1st enable (apply) and Not define (apply)
Download below application.