Hi I also had this issue with an error - I found the best way was to follow the Zip file process but instead of deleting the sheet protection code was to replace it with a code of a spreadsheet you know the password - or just generate a dummy spreadsheet with a password ...
i have same series HP Pavilion dv4-1133tx ,i am in need to perform downgrade so that i can work on ORACLE 9i as it is not applicable on Vista, i have seen JLian post, that it was successfully downgrade HP DV4-1107tx from Vista Home Premium to WinXP SP2 i want to do the s...