How can I decrypt my Windows 7 files?

I had Glass windows 8 and also encrypted most of the records and also directories.The windows SEVEN ended up not reaching consequently POST designed a further partition on my personal harddrive consequently I could access each of my information from your additional partition.The item functions but now WHEN I cant open up my encrypted information or version.Whenever we endeavor to, the item says you do not have agreement…if WE endeavor to bring my own laptop to the authorized number it affirms won’t be able to locate certificate.and so how could i decrypt along with gain access to all these records you need to support it is vital!

You could attempt using these kind of steps
http://www.online-tech-tips.com/computer-tips/decrypt-encrypted-xp-files/.