Hello KyRy, and welcome to Seven Forums.
You might check to see if you can right click on the file, click on Properties, click on Security tab, and make sure that you have Read & execute
permission allowed (checked) for your user account or the administrators group.
Permissions - Allow or Deny Users and Groups
If not, then you might see if you may be able to install and use the free program Unlocker
on the file to have access to it afterwards.
Hope this helps,