How to set the prohibition folder to write

in Win7 system 1. Check whether the format of the disk where the folder is located is NTFS or FAT32. If it is a FAT32 format disk, first convert the disk format to NTFS format. To convert the disk FAT32 format to NTFS format:

Start--Run (Enter CMD)--OK, in the administrator command window, enter: Convert G: /fs:ntfs(G: To modify the folder permissions The disk symbol where the folder is located), press Enter.

If prompted: Is the volume in use, do you want to force the uninstall? Enter N--Enter, do you want to perform the conversion at the next boot? Enter Y--Enter.

2. Right-click the folder you want to protect and select “Properties”. In the window that opens, switch to the “Security” item and click “Edit”;

3. Find the write in the permission bar below, and tick the Deny box in the write, click OK, go back to the file properties window and click OK.