PE said:
Hi all: A few months ago I bought a new system that came with W7 home
prem. installed. About once a week since it was new, a message is
displayed during boot-up saying the disk needs to be error-checked. So
I schedule an error check for the next boot up, the error check gets
performed, and then after about a week I get the check disk for errors
message again during boot up and repeat the process. Would appreciate
any advice re. whether this is normal, and if it isn't, what should be
done about it? Thanks for your replies.
What do the SMART statistics say for the drive ?
http://www.hdtune.com/files/hdtune_255.exe
That program, when you run it, has a "Health" tab. On this particular
disk, the Current Pending Sector count is non-zero. The number 17 there,
means 17 sectors somewhere, have been detected as flaky, and the next
time Windows goes to write to them, the drive controller will evaluate
the sector, to see whether it's worth keeping. A spare sector would be
used in its place, and an entry in a table made (to keep track of what
sectors are now spared out). A large pending sector count, implies
the drive health is headed downhill. My two drives currently, have
zero for Current Pending, and have had it that way, every time I've
checked. It doesn't mean my drives have never had bad sectors. It just
means there isn't a "pile of work to do". A large Pending Count implies
bad sectors may be building up, and perhaps there is a bad patch on
the platter surface.
http://2.bp.blogspot.com/_pJZ6uImDq.../s400/HDTune_Health_WDC_WD6401AALS-00L3B2.png
You can also test the hard drive, with the manufacturer's diagnostic.
In that example image, the drive was made by Western Digital. You'd
check the WesternDigital web site in that case, and look for their
drive test. You read the instructions on the drive test, to see
if it is read-only (safe) or read/write (destructive). I haven't used
all of them, and that's why I recommend reading any warnings before using
them. The manufacturer diagnostic can give you a quick answer as
to whether the drive is defective or not.
It doesn't matter what kind of computer you have, it always can benefit
from a backup strategy. Even if you followed the suggestion to return
the computer, the next computer will need backups for safety. A separate
external hard drive in USB enclosure, can help you by providing the space
needed for a backup. And then, if something ever happens to the hard drive,
your data is safe. Prices start at about $50 for 250GB and perhaps $100 for 1TB.
The suggestion to run the disk check, may be related to the efforts
to defragment the drive once a week. Defragmentation may be scheduled
by the OS, and perhaps the perception of a drive problem, is a side
effect of something happening during defragmentation. I'd want to
(somehow), check what is happening during defrag (status report) -
perhaps an error is being thrown in defrag, and that's what is creating
this mystery. Defragmentation is a bit different in Windows 7, in that
the defragmenter only defragments smaller files, and doesn't attempt to
work on file hogs. It means the defragmenter can work a bit faster.
And by running weekly, it reduces the time spent on the task, to
manageable levels. It may attempt to do the work at night, but if
the computer is switched off at night, I don't think the scheduled
event is smart enough to move itself to the daytime. The defragmenter
should not run, if chkdsk shows the partition has problems. It's not
a good idea, for the defragmenter to run, if the file system is
damaged.
http://blogs.msdn.com/blogfiles/e7/...ntationBackgroundandEngineer_CA52/image_8.png
(
http://blogs.msdn.com/b/e7/archive/...d-engineering-the-windows-7-improvements.aspx )
It's possible that running one CHKDSK will clean up the problem, and
it never comes back. You'd want to verify as well, what the results
of CHKDSK show.
http://www.w7forums.com/use-chkdsk-check-disk-t448.html
The thread here, recommends using event viewer (eventvwr.msc) to look for
the chkdsk log.
http://www.sevenforums.com/crashes-debugging/63428-chkdsk-errors.html
Chkdsk works at the file system level, and not the physical level.
HDTune and the manufacturer diagnostic, are more interested in the
physical level. Chkdsk would be seeing the side effects of bad
sectors, if they were present. The file system can be corrupted
for other reasons than physical. If chkdsk shows some weird errors,
more than little things, then that might be a sign there has
been some damage in the recent past to the file system.
Paul