Weird computer startup issue

Hello, I’m running XP Pro SP3 on a homebuild that pretty much always runs fine.

Yesterday, apparently out of a clear blue sky, my pc began to do this:

It boots normally, no delay. Once the GUI is loaded, my wallpap;er comes up, but no icons. The start button is inactive, to both KB and mouse.

I have a shortcut on my taskbar to “my computer” (new toolbar, not quick-launch) which is also inactive.

I can use the keyboard to get task manager, and then go new task and click browse, but it will not let me go up the tree out of "my documents’ to select the system or another hard drive. I get the flashlight, apparently indefinitely. I can type in the name of a known app and it will run.

After ten minutes or so, my icons suddenly reappear, and the buttons are active – but I can only select one application; after that, everything is inaccessible again. Anything else I try to click or select with the KB will open up maybe fifteen minutes later. Once that app starts running, everything else is inactive again including whatever app was already running.

Fortunately, my browser seems to be the exception; it remains accessible.

The only unusual event, immediately before the issues started, was that I reinstalled the drivers for my HP printer. However I have run this printer on this box before with no problem. (I do usually uninstall it between my infrequent uses because it’s a resource hog.) I had downloaded the drivers freshly from HP. Can’t be sure, but I can’t see how the install could have done this.

Still, after more than a decade, XP still amazes me with its ability to produce completely new idiosyncracies. (new to me anyway.)

It is unlikely that this is a malware issue; I run things pretty tight.

I ran the system file checker with the scannow switch and it completed, with many stops but no delays.

Guesses?

could be a failing hard drive; it’s not corrupting the filesystem (yet) which is why the system file checker passes. But the drive could be delaying things with repeated re-tries to read and write things.

Also, depending on how old the build is, check the motherboard around the CPU area for swollen or leaking capacitors. I recycled a Dell desktop with failing capacitors that worked generally normally, but would inevitably fail on large file transfers.

XP really like a gigabyte to run smoothly. The fact that you notice the printer taking resources suggests marginal memory as does that 15" delay in application starts. I have four printers installed and don’t experience any performance lag. Where I’m going is that maybe you had a memory failure. What used to be marginal is now struggling to load applications. Run a memory tests. Remove and reinstall and all that stuff. What does the task manager show as CPU and memory usage?

Is there anything of interest in the Event Logs? Any delay like yours usually means that Windows is waiting for something and eventually timing out.

What happens if you disconnect the printer?

Had to work extra late tonight, thanks everybody for your replies.
jz78817: I’m pretty sure that the hard drive is okay. All the SMART data is within acceptible operating parameters. (heh) It’s relatively new, and the OS install is not even a month old. (this time!)

Al Bundy: I’ve got 2 gigs. Task Manager says I’ve got about one and a half gigs available currently. CPU usage 2–3%.

Quartz: I don’t know why I didn’t think to check that – I’ve got several that say, “Windows cannot unload your classes registry file. it is still in use by other apoplications or services.” Sounds more like a symptom than the problem itself, but I honestly don’t know exactly what that means. What do you think?

Also, under system events, there are several that say, "The server {long string of alphanumeric data} did not register with DCOM within the required timeout."

These are both events I have never seen before.
Oh, and I disconnected the printer first thing, I even turned the spooler service back off. It didn’t make a difference as far as I can see.

Blast! I was hoping it would give a name. Try searching the registry for that string.

Okay. I’ll go copy it down and let you know what I find.

Sounds like you were expecting this msg.–?

I’m back. It says, “WIA device manager.” Dang, maybe it was the printer.

Errr, that’s windows image acquisition service, no? I assume that it needs to be turned on, I’ll try and figure out how to get to the control panel with my limited browsing access. Oh, hey, I can get there through the MMC I believe.

I want to leave that registry key the way it is, right?

And thanks for your assistance.

Wow, Quartz, I am deeply impressed! Turns out that the WIA service was stuck in a permanent state of “starting…” I disabled it, logged off & on, re-enabled it, and tried to start it up again. Eventually I got a timeout error, with a number which I looked up in my handy Windows-error-codebook — "“Fatal error during installation.”

Seriously, that really is the last thing I would have suspected. (I even said so in OP.)

I had to disable it again to stop it hanging, but everything’s back to normal! Thank you from the bottom of my heart.

[Interestingly enough, the reason I was trying to install and run the printer was that it seems to have acquired a couple of six-legged inhabitants, and a REALLY BIG eight-legged one — so I was going to print a few things, and see if I could annoy them enough for them to come out into weapon range.

But I find it amusing that the root cause of the bug in my system was…
bugs in my system!]

I owe you one, buddy.

You have just had a Grace Hopper moment. :slight_smile: