Then copy the part below into notepad and save it as setpol1.reg
Set filetype to All files.
REGEDIT4
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer]
"NoFind"=dword:00000000
"NoViewContextMenu"=dword:00000000
Then doubleclick that file and confirm you want to merge it with the registry.
Reboot and your Search option and rightclick menu should be back in action.
Let me know.