Solved

iastor70.sys giving me stop error 50

Posted on 2011-03-08
4
925 Views
Last Modified: 2012-05-11
Customer came in with a computer running slow.  Updated and Ran Malwarebytes.  It found 5 "Mywebsearch" and another minor one.  Upon reboot, the computer has been cycling on and off, including all the safe modes.  Choosing "Disable automatic restart" I was able to get a BSOD.  It was PAGE_FAULT_IN_NONPAGED_AREA  with a stop 0x00000050 (0xf7400c1a, 0x00000008, 0xf7400c1a, 0x00000000) and then two copies of

**** iastor70.sys Address F7400C1A base at F73F7000, Datestamp 00000000

I ran MEMTEST for one cycle and than ran SPINRITE level 5 overnight with no problems seen.  I then Ran AVG rescue CD and it found 5 trojans and then also booted to a rescue disk and ran a CHKDSK /R .  The only progress made in solving this problem is that I now only have one copy of the iastor70.sys message.  The computer still recycles and I still get a blue screen of death.  I even replaced the PSU just in case with no effect.
0
Comment
Question by:alanvcole
  • 2
4 Comments
 

Author Comment

by:alanvcole
ID: 35074035
BTW - went into BIOS and SATAAutodetection is Set up for the default RAID AUTODETECT/AHCI setting.

This is a DELL Dimension 8400
0
 
LVL 48

Assisted Solution

by:dbrunton
dbrunton earned 45 total points
ID: 35074097
Does the BIOS permit you to switch from SATA to Legacy or IDE or Compatability mode?  Or a non-SATA mode?
0
 
LVL 16

Accepted Solution

by:
uescomp earned 80 total points
ID: 35074099
Although bad ram can still pass running a memtest, i would pull one and swap them back in forth in different slots to verify its not a ram issue.  Otherwise i would try to boot into safemode or use ERD commander to do a system restore back to a previous date.  You also might have a bootsector virus causing this issue also.

And on another note does this build have a raid controller?  I think iastor70 is a mass storage driver probably corrupted, run a hard drive diagnostics to see if there are bad sectors.
0
 

Author Closing Comment

by:alanvcole
ID: 35074606
The Combination of moving back and forth in the RAID configuration and doing a system restore with ERD commander did the trick and got the unit to boot up just as the customer walked in the door!  Thanks, Guys
0

Featured Post

Three Reasons Why Backup is Strategic

Backup is strategic to your business because your data is strategic to your business. Without backup, your business will fail. This white paper explains why it is vital for you to design and immediately execute a backup strategy to protect 100 percent of your data.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Can I legally transfer my OEM version of Windows to another PC?  (AKA - Can I put a new systemboard in my OEM PC?) Few of us are both IT and legal experts but we all have our own views of Microsoft's licensing rules and how they apply.  There are…
Migration of Exchange mailbox can be done with the ExProfre.exe tool. But at times, when the ExProfre.exe tool migrates the Exchange Server user profile, it results in numerous synchronization problems. Synchronization error messages appear in the e…
Microsoft Active Directory, the widely used IT infrastructure, is known for its high risk of credential theft. The best way to test your Active Directory’s vulnerabilities to pass-the-ticket, pass-the-hash, privilege escalation, and malware attacks …
Two types of users will appreciate AOMEI Backupper Pro: 1 - Those with PCIe drives (and haven't found cloning software that works on them). 2 - Those who want a fast clone of their boot drive (no re-boots needed) and it can clone your drive wh…

831 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question