Why does it take so long.

[Amol S.]

_____Why does it take so long to compress something into a zip file compared to extracting it on Windows 8.1 and on Windows 7. Also, there are times when there could be problems when one interrupts the process in the middle.
_____At one time I interrupted the zipping process in the middle and the output file was incomplete and showed weird hard drive values like 3GB is a zip file, when the files I zipped would add up to 500MB only. When I try to delete it I can not delete it. I can not even move the file.
_____Can anyone tell me about why it takes so long, and what causes the interrupted zip file program. I do not use any zipping software, to zip a file, I just drag and drop an object into a zip file, so I use the default zipping thing that came with the pc that was made by Microsoft.

 

[Fardringle]

1: Because writing a book takes longer than reading it.
The compression program has to read and analyze all of the contents of the file to figure out where and how it can be compressed. When extracting a compressed file, the program only needs to look at the information in the zip file to reverse the process.

2: You interrupted the file in the middle of the compression process. Of course it's going to be corrupted, and the partial files inside it will not show their correct data and sizes because the compression program wasn't finished working on them.

3: A faster CPU will result in faster compression times. Usually, interruptions happen because you (or another program) told the compression program to stop, or the program encountered errors in the file or on the hard drive that it could not bypass so it stops the process since the output results would be invalid or corrupted.

 

[ArisVer]

When I try to delete it I can not delete it. I can not even move the file.

Try Unlocker.

http://emptyloop.com/unlocker/

 

[Fardringle]

When I try to delete it I can not delete it. I can not even move the file.

I missed this part earlier. Are you able to delete the file if you reboot the computer? If so, then the compression program - or whatever interrupted the compression - had the file locked. If not, then I suspect file system (or physical hard drive) problems and I recommend doing a full file system check. To do that, click on the Windows Start button, click in the search box at the bottom, and type CMD do not press Enter). In the results at the top, right-click on cmd.exe or Command Prompt and choose "Run as Administrator". In the command prompt window, type chkdsk /f /r and press Enter and when asked if you want to schedule the scan for the next reboot, choose yes. Then reboot the computer and let the scan run until it finishes.