Word 2007-2010 password removal

Go to Developer tab and protect document
follow task bar to add password for "Read Only"
save and close
rename file to filename & .zip
extract files
open extracted folder and find "word\settings.xml"
right-click and edit
find string starting with "w:documentProtection"
it will be after "w:proofState" group
cut to notepad and save
save
drag settings.xml to the same location in the zip folder and replace
rename file to name & .docx
open document and edit
repeat steps but paste "w:documentProtection"