I'm getting an error code 1332 MSG: Disk - Block 86054984: iterrupt request (irq) did not set in time.
My computer seems to feel this is pertty serious. Any idea what's going on ?
What model PC? What Operating System?
But, that is some type of disk error. If it was a one time thing I would not get concerned. If it happens again then it's time to look into it. As you didn't include your PC Model I can't say for sure, but many Dell's have a Diagnostic Partition on the hard drive, accessed by F12 at bootup. If yours has this you should run the complete hardware diagnostics to see it flags anything.
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The problem is with a Dell Studio 8100, 18 months old running Windows 7.
It's running now, but froze on the windows screen for a couple of frantic hours. I did squeeze a scary message, "operating system not found". That sounded like a bad virus or hard disk to me. Since it's running now, Norton Anti hasn't seen a problem. I've been able to back up all my date, but hate the thought of losing all my programs if it's a hard drive issue.
The 8100 has the diagnostic partition, run a complete hardware diagnostic, paying particular attention to the hard drive.
Also, make sure your backed up data is on a separate storage device and not on a different partition on the same drive. If you lose the drive the backed up data is also lost.
One other option is a "ghost" program such as Acronis True Image (what I use) to do a full hard drive back up (all partitions) to a separate hard drive. If the drive were to fail it can be rebuilt or a new drive rebuilt in about an hour back to how it was when the last full backup was performed. Windows 7 has a built in backup program but I like the Acronis better. Most of the techies that I know use Acronis.