From my experience using the CHKDSK /f command, a large number of files can slow this down significantly. It's not so much the file sizes but the file count.
My 5tb backup HDDs seem to take 2 or 3 days for a full chkdsk including surface scans. I sometimes put them to scan on a weekend. Put a USB fan on top of them to keep em comfortable. Seems to help.
thanks Leo - having real trouble with a MacMini 2018 I'm running as a Windows machine - runs very hot - tried to create a bootable back-up using Easeus but it or resizing to fit the external drive really screwed up the partition - after 2 days I've decided to cut my loses. Will do as you advise, deep format and run chkdsk /r again
I unplugged my external hard disk when it told me i can't disconnected because its being used while it wasnt in use. After i did so, i couldn't find my files, i am wondering if this can fix it?
THAT'S IT!!! Maybe. But Thanks! I'm trying to check my "disk" just for the fun of it, I've not tried doing it before, and I think it's taking forever because of all I got plugged in. Every restart just spins that silly little wheel for hours and I thought I had to just do a Windows reinstall, but now I got something else I can try first, thanks again.
Does it actually "repair" bad Sectors? . I don't want any weak or problematic sectors being marked as 'good' or usable because it can cause problems further in time. Can't I avoid the repairing and just mark them bad?
I know of no way to change what it does. My understanding is that not all bad sectors are necessarily physically bad so recovering makes sense. Of course if it can't be recovered it'll be marked as bad and avoided.
Hello Mr., thank you for your video. I used this command for 2 TB Hard disk (HDD). Although it has been 3 days, only 30% progressed with this command. If you have a suggestion, I would appreciate it.
Leo, as you started to run chkdsk, you said, "... I'll run it as Administrator just in case.". What did you mean when you said "just in case?". Just in case of what? Also, what does running something as Administrator do? Thanks
Just in case it's required ... which I believe it is, depending on the disk you're CHKDSKing. (I expect CHKDSK on the system drive requires admin, which CHKDSK on a random external drive might not. I could be wrong though.) It's just a permissions thing, it does the same thing when it runs.
Is it better to run it on individual partitions one at a time after partitioning them or on one large partition before dividing into separate smaller partitions?
I have a 6 TB external drive. It's probably a little more than half-full. I got a new(ish) computer and I got the dreaded "there's a problem with this drive". So I've been running CHKDSK /r on it. It's been going for at least a week now. Is there a way to tell how far into the scan it is, percentage-wise? My computer is begging me to restart for updates but I don't want to stop the scan and potentially cause even more problems.
@askleonotenboom I'm guessing it wouldn't take long if its brand new with nothing other than installed programmes on it,,would that be right? And is it just the C drive to check the hard drive or ?
@@johnygthing A CHKDSK /F will be very fast, yes, but I think it's CHKDSK /R you want in this case, which is proportional to the size of the drive, not the amount of data on it. Any drive(s) that are internal to the machine. Usually that's only C:. But again, it's all not a big deal, and honestly, not something I bother with when I get a new laptop.
From my experience using the CHKDSK /f command, a large number of files can slow this down significantly. It's not so much the file sizes but the file count.
My 5tb backup HDDs seem to take 2 or 3 days for a full chkdsk including surface scans. I sometimes put them to scan on a weekend. Put a USB fan on top of them to keep em comfortable. Seems to help.
what no way
oh nvm its 5 tb i see why
thanks Leo - having real trouble with a MacMini 2018 I'm running as a Windows machine - runs very hot - tried to create a bootable back-up using Easeus but it or resizing to fit the external drive really screwed up the partition - after 2 days I've decided to cut my loses. Will do as you advise, deep format and run chkdsk /r again
I unplugged my external hard disk when it told me i can't disconnected because its being used while it wasnt in use. After i did so, i couldn't find my files, i am wondering if this can fix it?
Thanks for this practical information
The person writing in, about chkdsk taking a super long time, might be using an external drive, plugged into a USB 2.0 port.
THAT'S IT!!! Maybe. But Thanks! I'm trying to check my "disk" just for the fun of it, I've not tried doing it before, and I think it's taking forever because of all I got plugged in. Every restart just spins that silly little wheel for hours and I thought I had to just do a Windows reinstall, but now I got something else I can try first, thanks again.
Does it actually "repair" bad Sectors? . I don't want any weak or problematic sectors being marked as 'good' or usable because it can cause problems further in time. Can't I avoid the repairing and just mark them bad?
I know of no way to change what it does. My understanding is that not all bad sectors are necessarily physically bad so recovering makes sense. Of course if it can't be recovered it'll be marked as bad and avoided.
Is there any way to stop the run, its taking too long.
CTRL+C
Thanks for this video support inf.
Hello Mr., thank you for your video. I used this command for 2 TB Hard disk (HDD). Although it has been 3 days, only 30% progressed with this command. If you have a suggestion, I would appreciate it.
i think it depends on your current hard disk health too. The more bad sectors. the longer time needed.
I'm still running chkdsk from a month ago.
Leo, as you started to run chkdsk, you said, "... I'll run it as Administrator just in case.". What did you mean when you said "just in case?". Just in case of what?
Also, what does running something as Administrator do? Thanks
Just in case it's required ... which I believe it is, depending on the disk you're CHKDSKing. (I expect CHKDSK on the system drive requires admin, which CHKDSK on a random external drive might not. I could be wrong though.) It's just a permissions thing, it does the same thing when it runs.
@@askleonotenboom Leo, thanks.
Thanks
I was running chkdsk on an external hard disk when it was accidentally came unplugged. What could have happened to it?
Many things COULD have happened to it. Have you run CHKDSK again?
@@askleonotenboom no I haven’t, should I?
Is it better to run it on individual partitions one at a time after partitioning them or on one large partition before dividing into separate smaller partitions?
You want to run it in whatever configuration you intend to use. Re-partitioning kind of invalidates the data structures that CHKDSK checks.
I have a 6 TB external drive. It's probably a little more than half-full. I got a new(ish) computer and I got the dreaded "there's a problem with this drive". So I've been running CHKDSK /r on it. It's been going for at least a week now. Is there a way to tell how far into the scan it is, percentage-wise? My computer is begging me to restart for updates but I don't want to stop the scan and potentially cause even more problems.
How did it end?
I would like to run CHKDSK on my 4TB drive.
But I wanna know how much time it can take before starting it.
Is there any need to do this in a new laptop ,,would it identify and damge feom handling/droppage etc?
"Need", not really, but it's a fine thing to do to check out the drive.
@askleonotenboom I'm guessing it wouldn't take long if its brand new with nothing other than installed programmes on it,,would that be right? And is it just the C drive to check the hard drive or ?
@@johnygthing A CHKDSK /F will be very fast, yes, but I think it's CHKDSK /R you want in this case, which is proportional to the size of the drive, not the amount of data on it. Any drive(s) that are internal to the machine. Usually that's only C:. But again, it's all not a big deal, and honestly, not something I bother with when I get a new laptop.
@askleonotenboom might just not bother then and leave it
great!
doing this on my brother's external HDD and it takes forever 50 of 27905
for me with my 1000 GB HDD it takes 10 hours