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Windows 7: exFAT format??

07 Apr 2010   #31
kambohg

xp
 
 
exfat and 1 more prob

thanks for ur reply dear i have instal exfat and its going well but i want know 1 thing i have buy 10 USB for sale and all are 128GB after instal the exfat i faced new prob my usb crapet data or if usb save the data many time its not remove many files from usb y its doing like that is this exfat prob 2nd hardware programming prob or usb have not 128 GB hardware but programing showing 128GB for that its doing like that


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07 Apr 2010   #32
hoak

Server 2003
 
 

kambohg, I didn't respont to you as your English grammar is very hard to understand, and doesn't make sense; some possible answers to what you might be asking (as I really can't tell what you're asking):

On Windows XP have you installed the exFAT driver? Windows XP does not come with the exFAT driver installed so you have to download the update which you can find: here...

Any USB FLASH formatted with any file system is going to report a smaller formatted size then the unformatted raw capacity, this will vary with the file system you choose.

The file capacity of the file system will also vary depending on the cluster size you choose and the size of the files on the file system due to wasted clusters space...

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24 Apr 2010   #33
overcertified

XP
 
 
Features

exFAT version 1.00, the current desktop version does not have ACL. Prior versions of FAT (FAT12/16/32) don't either, but the exFAT on WIndows CE does, and according to the exFAT specificaton, future versions of exFAT will. For effective use of the OS, you should have permissions for read, write(modify), etc, which NTFS supplies and FAT currently does not.

Prior versions of FAT have 2 FATS and flip flop between the FATs to insure integrity. exFAT only has one FAT, annd in a later release will provide TexFAT (Transactional exFAT) which will have 2 FATs and is called transaction SAFE exFAT.

ven if you could force W7 to install on exFAT, now is not a good time to do it, especially while the bugs need to be worked out.

One reason why exFAT is good for removable media while NTFS is not is the Lazy write. NTFS does not flush its buffers right away and if you yank out a NTFS removale drive you can lose data.
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24 Apr 2010   #34
overcertified

XP
 
 

If you want to learn more about exFAT and its internals, I published a technical paper on the file system and the paper is in the SANS reading room: http://www.sans.org/reading_room/whi...e-system_33274

And I am blogging a little at exFAT Extended FAT File System
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26 Apr 2010   #35
hoak

Server 2003
 
 

Fascinating stuff overcertified, thankyou so much for posting! In your research do you get any indication that Microsoft has any intentions of making exFAT bootable and properly installable (supporting ACLs, Hard Links, etc...) for the Windows desktop operating systems?

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27 Apr 2010   #36
overcertified

XP
 
 

In the Microsoft Specification they seem to imply that TexFAT and ACL, two existing features already existing in the Windows CE version of exFAT, will be released in a later desktop version. However, I have no idea whether other features of NTFS, such as mount points and links will get supported. The specification even hints at the capability of encryption, which does not exist in Windows CE, and was not really a hint that it will be provided, but the idea is that exFAT is extensible, so anything can happen.

FAT32 has 2 boot sectors in the 3 sector VBR, the partial boot sector in the first sector and the full sector last sector. exFAT has a partial boot sector in the first sector and 8 more FULL sectors of boot code, it is a 12 sector VBR with 9 sectors that can contain boot code. In other words, the existing exFAT already supports a bootable VBR. I think the issue right now is to find some utility that will actually write bootable code into the VBR to make a bootable disk. However, I don't see installing Windows 7 in such a configuration, at least at no time soon. I think NTFS will be here to stay and that NTFS will still be the standard file system for Windows 7 and beyond - just a guess right now.
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05 May 2010   #37
witblits1970

ms7
 
 

what a load of dung this exfat format is., i have a flash that is formatted to exfat, it transfers data only that is smaller that 32 megs! anything larger than that you'll be lucky to get the data as only the folder is transferred. i have tried to format the drive to ntfs but 24 hours later im told MS can not complete the format.lol where to go fromhere as i have 200 gig's worth of stuff to back up!
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09 Aug 2010   #38
overcertified

XP
 
 

Vista and Windows 7 will not install on a file system that does not have file permissions, so I don't even believe that you could install either on FAT32 either. Also, Vista, Server 2008 and Windows also use junctions and mount points, which is also not available in FAT (12/16/32 or exFAT), so NTFS is really the only file system that the OS can install on. It is now too dependent and integrated into the file system.
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21 Aug 2010   #39
mrgcav

Vista Ultimate x64 & Windows 7 x64
 
 
You can install Vista and Win 7 to FAT32 & exfat

Overcertified
Aparentally you do not live up to your name.
I am a professional MS certified independant Computer engineer. (I do not work for MS). Anyway. You could not be more wrong.
Suggest you do your homework.
I have and I have pictures that prove that you can install Vista and Win 7 to FAT32 or to exFAT.
It is not a direct method. But it works.
See My posts and those of cclloyd9785 and hoak:
exFAT format??



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21 Aug 2010   #40
mrgcav

Vista Ultimate x64 & Windows 7 x64
 
 
I think your problem is elsewhere

Quote   Quote: Originally Posted by witblits1970 View Post
what a load of dung this exfat format is., i have a flash that is formatted to exfat, it transfers data only that is smaller that 32 megs! anything larger than that you'll be lucky to get the data as only the folder is transferred. i have tried to format the drive to ntfs but 24 hours later im told MS can not complete the format.lol where to go fromhere as i have 200 gig's worth of stuff to back up!:mad::mad::mad::mad:

I think your problem is not EXFAT....
I have been using exfat with no problems on several harddrives and flashdrives.
I would like more info on your problem. It seems unique. I have not heard of anyone having such a problem.
What is the make & model number of the drive ?
How old is the drive ?
When was it last formatted ?
Exactly how is it connected to your computer ? USB ? SATA, IDE ?
Want is the make and model of the computer ?
What is the OS ?

I think you have a failing harddrive.
Let me know.

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 exFAT format??




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