External hard drive file reading issue

Question

Hello everyone,

I'm not very experienced with computers and I'm new to CCM. I will explain my problem: I bought an ExFat external hard drive with a capacity of one terabyte on which I'm trying to transfer files that are generally quite large, games of 4 GB or more, movies, etc. The problem I'm encountering is that beyond 30 GB copied to my external hard drive, I can no longer read my files; they are identified as corrupt even though I'm sure they're not. This is the first time I've seen this and I can't find anyone who has encountered the same problem. I've tried with other external hard drives and I always have the same issue. Can someone help me? I've tried to look at the problem from all angles and I always come back to the same conclusion; it's driving me crazy! Thank you in advance for your help.

Thomas.

superbarnis · Answer

hello
you use ex fat or fat 32 file limit of about 4 Go
new devices under 10 years old read ntfs
to be verified

The 4 Go barrier is a strict limit of FAT: the file system uses a 32-bit field to store the file size in bytes, and 2 ^ 32 bytes = 4 GiB (in fact, the real limit is 4 GiB minus one byte, or 4,294,967,295 bytes, as you can have files of zero length).
we're not all geniuses but we're working on it
google is your friend don't forget it!

Thomas44_2522 · Answer

This is what I thought today, and I changed my hard drive from Ex Fat to NTFS with Minitool, but the result is still the same. As soon as I go beyond 32 GB of capacity on my hard drive, all files beyond that are unreadable and defined as corrupted. I don't understand anything anymore. Maybe I should try something else, but right now I'm lost. The change from Ex Fat to NTFS on Minitool is simple, yet the problem remains the same. If you know another way, I'm all ears. :)

Thank you.

MisteryBean · Answer

Hello,

do you use exFAT or FAT32, file limit is around 4 GB

Unrelated => https://en.wikipedia.org/wiki/ExFAT

Test your drives, even new ones, you're not safe from a defect: https://forums.cnet.com/tutoriels-logiciels-et-applis/487485-tester-son-disque-dur-ou-ssd-avec-crystaldiskinfo

They are unreadable on which device? PC / TV / Others?

--
Security contributor.

Thomas44_2522 · Answer

I was using Ex Fat until today but I switched to NTFS. The problem is still the same, should I switch back to Ex Fat? And when I transfer my files, I make sure not to exceed 4 GB. The problem remains the same, meaning that up to about 32 GB I can read my files, but beyond that limit, I can't anymore.

MisteryBean · Answer

On what medium are they unreadable? PC / TV / Others?

???

That is to say, I can read my files up to about 32 GB, past that limit, I can't anymore

Do you have an error message? 32 suggests the size of an SD card. In the explorer, does it display its actual size correctly?

--
Security contributor.

Thomas44_2522 · Answer

I have an error message that says the file is corrupted. If you want, I can transfer my files and open them up to 32 GB used on my hard drive; beyond that I get an error message saying the file is corrupted when I try to open them.

MisteryBean · Answer

If I summarize:

You transfer less than 32 GB, you can open your files
You transfer more than 32 GB, the files are unreadable

Do you always put them in the same order from the PC to the HDD?
Are they readable on the PC? (before transfer)

What does the crystaldiskinfo test show?

--
Security contributor.

MisteryBean · Answer

You have several tabs, one of them must be the external  -- Security contributor.

MisteryBean · Answer

RE_  it's not normal, you should see it.  Can you take a screenshot? Also take a screenshot of the explorer  -- Security contributor.

MisteryBean · Answer

Can you take a screenshot of the disk management? (by putting the window in fullscreen)  => Windows key + R => Type diskmgmt.msc and press enter  -- Security contributor.

MisteryBean · Answer

RE_

Try this:
=> Right-click on your disk 1
=> Click on delete volume
=> You will get unallocated
=> Right-click then Format
=> Enter a name, NTFS, uncheck quick format
=> Click twice on OK
=> Take another screenshot of the disk management
=> Try the transfer again

--
Security contributor.

MisteryBean · Answer

Click on simple volume, but it was in relation to your previous screenshots: (

MisteryBean · Answer

OK, in CrystalDiskInfo, you should see it, for example on my PC:   Try the transfer to see  -- Security contributor.

Thomas44_2522 · Answer

Hello MisteryBean,

Well, I tried using your software to reset my USB ports, I did as you told me. I tried transferring my files to another hard drive but unfortunately my problem is still the same and it even concerns PDF files and photos as well as all my music. I will try to restore Windows 10 to a previous version.

MisteryBean · Answer

RE_

Try starting in safe mode from the settings to see if you still have the problem. If it's OK, then a program is corrupting the files.
https://www.malekal.com/demarrer-windows10-mode-echec/#Les_methodes_pour_demarrer_Windows_10_en_mode_sans_echec

--
Security contributor.

MisteryBean · Answer

First, it will ensure that it's a hardware issue or not.  If it works in safe mode, we will need to eliminate which program is causing the blockage.

MisteryBean · Answer

You need to go down in the tutorial  Start with the Windows 10 troubleshooting options  -- Security contributor.

Thomas44_2522 · Answer

Ok I've done what you told me and I'm still having the same problem even in safe mode.

Thomas44_2522 · Answer

Do you think resetting the system could help?

Thomas44_2522 · Answer

I did some troubleshooting today by contacting the manufacturer's support; they checked everything, updated the drivers, and everything is working well. That's the only problem I have.

External hard drive file reading issue

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