This process is very time-consuming, especially if you have a hard disk with low write\read speed and a processor that isn't so powerful. At this point, it's advised to let the program to complete the compression phase. If you Stop the process, all your files will be automatically uncompressed and you will need to start it all over. To speed up the process, it's advised not to use your computer until the compression phase is over because by using it, you slow down the process.
