To change the file permission settings in Windows 7, you need to access the file properties dialog box and modify permissions listed under the Security tab. There, you can add, remove or change various types of permissions for every group or user that operates the computer.
- Access the file properties dialog box
Use Windows Explorer to navigate to the folder containing the files for which you wish to change permissions. Mark the files by holding the "Ctrl" button and left-clicking on them, or use your mouse to draw a selection box over the files. Once the files have been selected, right-click on any of them, and select the Properties option in the drop-down menu. If you wish to modify all of the files within a specific folder, you can right-click on that folder and select Properties.
- Find the list of groups and users
In the Properties dialog box, left-click on the Security tab. The top part of the dialog box displays the list of all groups and users. There, you can select any of them and analyze the type of permissions currently assigned to each one.
- Modify file permissions
Left-click on the Edit button. If you see a User Access Control prompt, select the Yes option. In the file permissions dialog box, you can check or uncheck the boxes next to the various types of permissions in the Allow and Deny columns. This lets you customize the level of access for each group or user individually. Additionally, you can completely remove individual users and groups of users from the list by selecting them and left-clicking on the Remove button.