A: 4K â also known as UHD (more on this in the next answer!) â is a picture technology that quadruples the number of pixels found in a full HD picture. These pixels are usually arranged in a 3,840 x 2,160 configuration, compared with the 1920x1080 you get in a full HD TV.
A file with the 7Z file extension is a 7-Zip Compressed file. Other types of files may also use the 7Z file extension. If you know of any additional file formats that use the .7Z extension, please let me know so I can update this information.
Add a password. On the right side of the 7-Zip window, there will be two fields to enter and confirm a password for the file. You can also select your form of encryption, and whether or not you want the names of the files encrypted as well.Click OK when you are done.. Create the compressed file. Select the folder that you want to password protect. Right-click and select 7-Zip from the menu. From the second menu, select âAdd to archiveâ¦â This will open 7-Zip.