Hm, unfortunately XOSLAB does not document how "Easy File Locker" actually works.
As far as I can tell from the installer package, it seems to install a special Windows driver which probably intercepts access to files, in order to implement its features like hiding files.
If that is true, you should be able to access your files if you boot from a different medium. Options would be for example:
- boot with a Linux LiveCD, then mount your Windows partition
- boot a Windows LiveCD (e.g. BartPE)
- connect your harddisk to another computer to read it
Then you should be able to see & copy your files.
As to getting rid of Easy Locker, that might be more tricky. You could try deleting the files it installs manually (also after booting from a different medium). However, this might wreck your whole Windows install, so only do it after making sure that the recent backup you have (you do have a recent backup, don't you?) is complete and OK. If you want to try, you probably need to delete the files
xlkfs.dat from your Windows installation dir.
However, if Easy Locker actually modifies or even encrypts your files to hide them, you might be out of luck...