A few days back I tried installing vmware workstation on my Windows 7 64-bit and I got Error -1406 .. Eeeerrrrrr ... Errors all the time...  I asked google and got so many answers but I felt unlucky as nothing worked for me.. Belive me I tried 101 things to solve... and I guess the solution was just with me...  below is a simple thing what I did to get my workstation started...

  Go to the regedit and delete the reg entry