Question: How does Windows 8.1 64bit copy files?

[TheHorsetoWater]

Sorry in advance if I do not have the correct diction of the forum...

How does windows copy files - does it copy one by one or does it copy them in a kind of torrent like way, in chunks. The reason why I am asking is a large transfer was interrupted by a BSOD the other day and I have ended up with duplicate files however I do not know if the files that were copied and interrupted are now corrupt.

I am hesitant to delete the original source and will likely re-do the exercise but I wondered how Windows copes with an interrupt during file copy.

Does it maintain the integrity of the file, so if it is interrupted on say file number 7/10 then it will verify and keep files 1-6 but delete the fragment / corrupted file 7?

Would love to know.

Thanks in advance

 

[axe0]

HI TheHorsetoWater,

When a copy action is interrupted, the original file is not touched.
The file that is incomplete can be deleted safely and you can try to copy the files again without any corruption.

Windows does copy the files 1 by 1, if the first is done Windows goes on with the second etc.

 

[brooksndun]

use teracopy free.. and never care again about copying files going wrong...

 

[axe0]

use teracopy free.. and never care again about copying files going wrong...

Actually it'll always go wrong with BSOD's, no matter what software.

 

[brooksndun]

Then you got more serious problems like faulty hard drive or corrupt window files / drivers ???

 

[axe0]

Depends on if a BSOD returns.
A one-time BSOD is handled by Windows itself.

 

[TheHorsetoWater]

Thank you all for your thoughts.
I tracked the occassional BSODs to a faulty USB Hub (a cheapy amazonian-sold [DEL]Tachnysis[/DEL] Technysis one)
Since then no BSOD,
I guess I was generally interested if Windows writes a cache to volatile RAM to buffer the copy, or whether it uses checksum to return a verified copy. I could understand then if a BSOD would interfere with any write/read process.
Thanks for the thoughts.