Outlook 2010 PST file copying from 32 bit to 64 bit Office Outlook

Hi I am trying to move one pst file from one laptop which has Outlook 2010 32 bit to another laptop which has Outlook 2010 64 bit installed,
steps taken
1) Copied the pst file from the User/AppData/Microsoft/Outlook folder to usb.
2) Pasted the file from usb into User/Documents folder.
3) Tried to open the file in Outlook and I get the error that Outlook encountered errors while opening the file.
Now how is that possible when the file is working perfectly in one laptop but when I copy and paste it into another it gets corrupted? Is it due to 32 bit to 64 bit outlook? I tried to repair it using scanpst and it brought back few mails, so what else can I do? Am I doing something wrong in moving the file.
Thanks a lot