Almost all files are locked in my Time Machine backups? For some reason my files are getting locked in my Time Machine backups. I mean, when you "Get Info" on one of them, the "Locked" box is checked. Folders are NOT locked, though.

Is this normal? This doesn't apply to just Apple files either (such as .pages). It's happening to .txt, .avi, .png, etc.

By now, almost all the files in my Time Machine backups are locked. So when I restore a folder, for instance, every single file in it is locked. This has definitely not been the case for me before.
Go to Disk Utility, select the partition of your drive with the Time Machine icon, and click Repair Disk to verify and fix any problems with permissions settings (see below image).  

You may also want to repeat the process with Macintosh HD to be safe.



update Is this option checked for you? If not, it should be unchecked and Saved (from OSX Daily)