After downgrading back to Windows 7 from 10 I have Padlocks everywhere

I thought I want Windows 10, however it kept crashing and rebooting saying the display driver stopped working. After rebooting about a dozen times, I had enough and found a place that said to revert back to Windows 7 (Home Premium). I did and now I have padlocks on a lot of short cuts on my desktop and God know where else. What happen and how do I get rid of them?

I had the same problem and I had to remove each of them manually:

1-Right-click on the folder with the lock icon and select Properties. Switch to the Security tab, and then press the Edit… button.
2-A list of groups and users that have access to the folder appears. Missing from the list will be the “Users” group. Click the Add… button.
3-Enter “Users” into the text field. Click the Check Names button or click OK. “Users” will change to the location of the Users group on your particular computer.
4-The Users group should now appear in the list of Groups and Users with access to the folder. You can modify the permissions there. I clicked Full and all went back to how it was before downgrading from Windows 10.

Thanks to both for the reply. As Merry mentioned the "user" was missing. I did get some of the padlocks removed by checking allowing everyone. It was pretty scary at first seeing all the padlocks. I appreciate the reply and they both have helped me.Thanks again.