Why do I get iastor.sys error?

DoctorK12008
DoctorK12008 used Ask the Experts™
on
I tried to reinstall Windows XP from the Dell-supplied CD but I get an error that says:
"The file 1astor.sys was not copied correctly.
The file setup placed on your hard drive is not a valid windows xp system image.
If you are installing form a CD there may be a problem with the Windows XP CD
To retry press enter
If you continue to receive this message contact your windows XP supplier or system administrator.

If I ignore this file, it pops up the name of another.   If I keep ignoring these files, the installation fails.
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Most Valuable Expert 2013
Commented:
Try removing one of your memory sticks.  Despite it sounding like a CD drive fault it's likely to be a memory issue.
If you have multiple RAM modules it might take a while to work out which one is at fault.
Most Valuable Expert 2015

Commented:
You should test the RAM using memtest86+, and also test the HD using the manufacturer's diagnostic utility. If the HD diagnostic throws an error,it often gives you a chance to repair it. Do so if that is the case.If it tells you the disk needs to be replaced, then you'll have to do that prior to installing the OS. You'll find both on the UBCD:

http://ultimatebootcd.com

Author

Commented:
I downloaded the ultimateboot cd iso file and used Nero to burn it to a CD.   When I try to boot from this CD, it will not boot.   The only file on the CD is ubcd502.iso.   What am I doing wrong?
Most Valuable Expert 2015

Commented:
You have to look for an option in nero to burn image files or iso files (don't know the exact wording nero uses nor do I know under what menu option you must look, but I know it has such an option), don't just drag the file into nero. Or get CDBurnerXP, which is a free burning utility, when you start it up it comes with a menu where it says "Burn ISO Image". If you select that option and then use the downloaded image it will be burnt correctly.

http://cdburnerxp.se/
Most Valuable Expert 2013

Commented:
The .iso file is actually a disk image you need to get Nero to unpack it onto the CD not burn a data disk
See here for Nero Smart Start and Express
Here for Nero Ultra

Author

Commented:
I created the CD and it booted, however all I get is the message:

isolinux 3.86, etc....

initial menu has no label entries!

boot:

Now what?
Most Valuable Expert 2015
Commented:
Try booting the CD on another PC. Does it work there? If yes, it's very likely the CD Drive on the PC it doesn't work on is defective, as the RAM utilization to boot that CD is minimal and it will usually boot even if the RAM is bad. If it doesn't boot on the other PC too, then try burning it again, making sure you use the lowest possible speed to burn it with. If after that it still doesn't work, your download either is bad, the CD burner is bad, or you are using bad CD's.

Author

Commented:
The CD did not boot on the other compute either.   I guess I had a bad download.   In any case, I swapped out the memory modules and discovered one was bad.   Serenity now!

Author

Commented:
Thanks to both experts.   This was a problem I would never have been able to solve.   Once again, my subscription was well worthwhile!

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