I have a Dell Inspiron 1750 running 64 bit Windows7. which appears to
be working perfectly...except....
I recently tried to copy my outlook mail .pst file (which is 1.7 Gb)
for backup purposes. The copy claimed to have got to within 5 seconds
of completion and then hung and eventually gave the message as
attached, reporting disk i/o error 0X8007045D
I was initially copying to a usb disk but I get the same error even if
Itry and copy within the main disk folder. I've tried doing it in
safe mode but get the same problem. It's behaving as if the .pst file
is corrupt, but outlook email appears to be working just fine.
There seem to be several reports via google of this error, but none
which seem to be the same circumstances.
Any ideas on anything worth trying (diagnostics, knowledge forums, etc
etc)
Thanks
In tolgan typed on Tue, 28 Dec 2010 13:51:54 +0000:
I would ask this in (they have great experts there):
microsoft.public.outlook.general
In "BillW50"
Why?
The problem doesn't have anything to do with Outlook beyond the fact
that the file was originally created by Outlook.
The OP was simply trying to copy a file and encountered an error while
doing so.
In Bert Hyman typed on 28 Dec 2010 15:51:50 GMT:
Oh I see! Well in that case the USB drive sounds like it is formatted in
FAT16/32 and the original drive is formatted in NTFS. If the USB drive
was formatted in NTFS, I think the problem would disappear. Hopefully
anyway. So how much free space on this USB drive anyway? And what is the
capacity of the drive?
There *is* no USB drive in my latest experiments. I am simply doing a
copy and paste within the same folder on my one and only internal
drive (which is NTFS) to create a copy of the file.
And yes, to confirm, I have no reason to believe that the problem is
because the file concerned is an outlook file. It could conceivably be
relevant if the .pst file is being treated specially somehow (e.g.
held oen by some background process perhaps) but this doesn't seem
likely. It also raises the possibility of trying to reconstruct the
pst file folder by folder but I was hoping not to have to go that
route...
I do wonder though if there might be a better forum, this is really a
Windows7 O/S question not specific to laptops, anyone know where else
to ask?
Thanks
In tolgan typed on Tue, 28 Dec 2010 17:48:23 +0000:
If Outlook is open, the main PST file will be locked. And what version
of Outlook are you using anyway? As some versions at least, doesn't
always completely close (you can still see it in the Task Manager under
Process). There is a free program called Unlocker that will free locked
files if something else has it locked.
As for Windows 7 newsgroups, there is only one that I know of and lots
of forums (Microsoft even has them).
alt.windows7.general
OK problem sorted, it really was a problem with a bad cluster on the
disk. I discovered there is a standard W7 disk error-checking tool
(accessible via the disk properties), and ran it with all options
enabled. It discovered and fixed a bad cluster. I can certainly copy
the .pst file now, just hoping nothing has hot lost but looks ok at
first glance.
Thanks all for your suggestions.
IDE drives usually marks bad clusters and replaces them with good
clusters as it finds them. So the user should never normally run across
any. But when you do, it isn't a good sign. As I would do a surface scan
on that drive as soon as possible.