By doing your homework!
You can copy the new command.com file to C:\ & C:\Windows\Command & C:\Windows\System
You can use ffmpeg to fix a corrupted MP4 file by using the "ffmpeg -i input.mp4 -c copy output.mp4" command in the terminal. This command will try to copy the video and audio streams from the corrupted file to a new file, which may help in fixing the corruption.
You might can copy it to a blank DVD if not then you will need to buy a new one.
Contact the sender to see if they have a copy.
Go to the system files, locate the temp folder, do a copy and paste. That's all there is to it.
An incorrect copy of DNA is also known as a mutation.
try a system check it will tell you whats wrong
It is when your current Operating System and files are wiped from the main harddrive and a new copy of the operating system is installed. If backed up, you files can then be copied back into the new system, but programs will need to be installed again as well. This is usually done if hardware has (at least partially) failed, malware has damaged the system beyond repair, or for some other reason part of your system has been corrupted.
I have a copy of this, but couldn't locate it!
soft copy
soft copy