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Solved Lenovo ThinkPad T500 on reboot loop

July 3, 2012 at 15:05:01
Specs: Windows 7, 2.53GHz/2GB RAM

My brother has a ThinkPad T500 which has suddenly been afflicted by a reboot loop. He was watching a video on it, then he went to eat breakfast. When he returned to his laptop, it had restarted and was running some Startup Recovery process. After that finished, it just went on to continue the boot, loading up Windows. Unfortunately, 30 seconds to a minute after logging in, it restarts again, and it just keeps on going. Some times, it will reboot before it has even given a chance to log in. We even tried to restore the system to factory settings, according to the instructions, by pressing the ThinkPad blue button, but it turned out that option was not available. Can anyone help? Have some idea? We would be very grateful.

See More: Lenovo ThinkPad T500 on reboot loop

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✔ Best Answer
July 23, 2012 at 15:53:46

Do you have a Windows 7 disk? You could reinstall off of that.

It is nice he got to keep the notebook though :).

You've been helped by a 14 year old.



#1
July 3, 2012 at 15:13:28

Try this, before windows loads press F8, try going on disable automatic restart on system failure and see if anything happens then try in safe mode by pressing F8 aswell.

I am a hardware guy not a software guy but i try to help.


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#2
July 3, 2012 at 15:58:24

I tried your suggestion, but pressing F8 did not return any option to disable automatic restart on system failure. Instead, all it displays is the Windows Error Recovery screen with the options to run in the three Safe Modes. Unfortunately, because this laptop was issued by my brother's school, he doesn't know the administrator password to run safe mode.

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#3
July 10, 2012 at 19:13:40

Does no one else have any other suggestions or ideas?

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Related Solutions

#4
July 10, 2012 at 20:34:41

Did you press F8 multiple times?

You've been helped by a 14 year old.


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#5
July 20, 2012 at 17:33:45

Yes, as per your suggestion, I pressed F8 multiple times providing me some advanced boot options. I proceeded by selecting the Last Known Good Configuration. This resulted in a blue screen, followed by a Windows Error Recovery screen. I selected the Normal Windows boot. The notebook still continues on its reboot loop. Nothing changed.

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#6
July 20, 2012 at 17:56:33

Post here what the blue screen says.

You've been helped by a 14 year old.


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#7
July 20, 2012 at 20:04:25

The blue screen starts with: A problem has been detected and windows has been shut down to prevent damage to your computer.

Then it goes on to attempt to provide some help, followed by a technical information line detailing an error code of sorts: ***STOP: 0x0000007E (0xC...)

However, after this screen (not immediately after), I started receiving two other similar blue screens but with different errors throughout the boot loop.

I will now attempt to provide a link to an image gallery of the three blue screens.
https://www.dropbox.com/sh/gvken8cb...

Edit: I forgot to mention that I've actually seen three similar blue screens, not two. Unfortunately, I've only seen it once and failed to shoot a picture of it in time.


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#8
July 21, 2012 at 11:50:56

This confuses me that you get 3 different STOP errors. I'm thinking it might be a virus casting a STOP error to prevent you from using your computer. Your best bet would be to make a bootable anti-virus CD to scan for viruses on your hard drive.

You've been helped by a 14 year old.


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#9
July 21, 2012 at 13:17:26

Yes, I started arriving to that same conclusion myself when I looked into one of the startup applications Advanced Registry Optimizer, which according to my results happens to be malware. Can you provide more info on this bootable anti-virus cd? Where can I download that?
Actually, I'm currently about to use a live CD of Ubuntu to scan the notebook for viruses and also recover some files stored in it.

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#10
July 21, 2012 at 13:29:56

Here is a link to a CD by AVG:
http://www.avg.com/ww-en/avg-rescue-cd

I don't use any registry cleaners on my computers because if they delete the wrong keys your computer could become inoperable.

You've been helped by a 14 year old.


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#11
July 21, 2012 at 15:14:47

Thank you for the link, but to be honest, I went through with using the linux live cd and running avast antivirus on it. If that doesn't work, I'll try the avg rescue cd. Will report later what happens. Thanks!

Yes, I don't like to use them myself either for that same reason. According to something in a forum thread I read, that registry app will install when someone is trying to install weather.com's desktop app, which my brother did.


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#12
July 21, 2012 at 16:12:01

Jeez... those people at TWC are very sneaky :).

You've been helped by a 14 year old.


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#13
July 21, 2012 at 16:20:01

hahaha! Yeah, well I doubt TWC is purposely trying to infect its users with malware. More likely, the file has was tampered with and they aren't aware of it, or the application was downloaded from a third-party source.

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#14
July 21, 2012 at 16:47:07

I can't imagine someone trying to hack into a weather website. Did the scan find anything?

You've been helped by a 14 year old.


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#15
July 21, 2012 at 17:24:18

Well, what I figure is that a lot of people depend on TWC for weather news, and most of those people will love having easy access to this information straight from their desktop. Easy prey for malware developers. Just my thought.

Unfortunately, 2+ hours into it, and it's still not finished yet. It's scanned a little over 1M files, and I feel there's many more to go. If my estimate is right, there's about 80-90Gigs of files to scan. Might take the rest of the evening to complete.


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#16
July 21, 2012 at 17:36:04

1 million files! What is being stored on the hard drive? A quick scan in MSE only scans 100,000 files on my computer.

You've been helped by a 14 year old.


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#17
July 21, 2012 at 17:42:17

I'm not really sure, but I'm betting most of those have to be system or application files. I doubt my brother has many documents or songs stored on the notebook.

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#18
July 21, 2012 at 18:07:05

So, almost 3 hours after I initiated the scan, it finally completed. According to avast, the notebook is infected by a couple trojans, some adware, and a rtk (rootkit?) Somehow I'm not surprised the commercial antivirus he had installed didn't prevent them from infecting the machine.
I'm gonna continue and delete the infected files. Don't think it will hurt the system as they're not very critical looking files.

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#19
July 21, 2012 at 19:13:53

Which virus scanner are you using in the Linux CD?

I would advise your brother to get a free antivirus, like MSE or Avira, as if you wouldn't advise him already...

You've been helped by a 14 year old.


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#20
July 21, 2012 at 20:33:10

I'm using avast! Antivirus on Ubuntu.

Yeah, once I get it up and running again I'm installing MSE. It's what I have installed in the family laptop and desktop. His notebook was issued by his school, so they apparently did not install any antivirus, or at least none he can remember.


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#21
July 22, 2012 at 14:13:27

The school decides it's the students problem now :). If your brother's stuff was backed up, I would go ahead and remove the viruses. What do you have to lose now?

You've been helped by a 14 year old.


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#22
July 22, 2012 at 14:43:55

Ha! Exactly. Yeah, I already backed up his files using ubuntu.

Well, I extracted the infected files to a flash drive just in case. Unfortunately, the virus removal did not do anything as the notebook is still boot looping. I'm currently running the avg rescue cd, except I installed it on a usb. I'm thinking/hoping that maybe avast missed something that avg might catch.


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#23
July 22, 2012 at 16:24:45

When you press F8 for the menu, does it have an option for "Repair your computer"? If it does, select that, because it has an automated program that will search for errors that prevents startup (conveniently named Startup Repair).

Let me know what AVG finds.

You've been helped by a 14 year old.


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#24
July 22, 2012 at 16:29:35

Oh, I've run startup repair already multiple times, but that does not seem to have any effect.

So I ran avg from a usb, updated the database, then did a program update, then the scan.
Nothing. Zero viruses.


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#25
July 22, 2012 at 16:54:10

I don't think there is much else to do. Try Startup Repair one last time since you removed the viruses. If that doesn't help...I'm thinking a factory restore is up next.

You've been helped by a 14 year old.


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#26
July 22, 2012 at 17:22:03

Yeah, there isn't anything I can think of either. I'll try startup repair one more time, but I don't think I'll be holding my breath.

Unfortunately, the notebook was issued without a recovery disk of any kind. So, factory restore is sorta out of the question, as far as I know. However, I found a website that sells these restore cds/dvds. So there's that.


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#27
July 22, 2012 at 18:41:54

There probably is a recovery partition on the hard disk to restore off of. On my Thinkpad, you press Enter when the Lenovo logo comes up, and I think there is a restore option there.

You've been helped by a 14 year old.


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#28
July 23, 2012 at 12:59:43

Yes, about that. For a reason I don't understand, there doesn't seem to be a recovery option available.
I've looked at a couple of forum threads, some say press F11 on the BIOS screen (that option only produces a beeping sound), others say F8 when it's starting up (that one produces a beeping with a black error screen code 0210: Stuck Key 42, then suggests I press F1 to Setup), and pressing Enter on the Lenovo logo screen produces a Startup Interrupt Menu that provides only two options:

ESC to resume normal startup
F1 to enter the BIOS Setup Utility.


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#29
July 23, 2012 at 13:11:53

Well...maybe a recovery partition wasn't created either. It looks like the end of the line for this computer, I think it just has to be brought to the school's IT person.

You've been helped by a 14 year old.


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#30
July 23, 2012 at 14:32:31

So, I forgot to report that I ran Startup Repair prior to posting my reply over trying to access the recovery partition.

So, I ran the startup repair, then after a few mins it finished then resumed to restart the system. I received one of the blue error screens (the one with the Stop code 0x0000007E). That was followed by a prompt to attempt another Startup Repair. I thought why not, and selected that. This time though, the startup repair process took longer than the first, then it notified me that Startup Repair could not could not repair this computer automatically, and asked to submit information about this problem.
Looking at the problem details, the Problem Event Name is StartupRepairOffline (if that says anything).

As for bringing it to the school, that's no longer an option as my brother recently graduated from it, and had him sign an agreement releasing the school of any liability over the notebook which he had to sign if he wanted to graduate. Devious, no? It's entirely understandable, but still, devious.


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#31
July 23, 2012 at 15:53:46
✔ Best Answer

Do you have a Windows 7 disk? You could reinstall off of that.

It is nice he got to keep the notebook though :).

You've been helped by a 14 year old.


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#32
July 23, 2012 at 16:39:38

I don't have a Win7 disk, but like I mentioned in the past, I found a site that sells restore/recovery disks for this notebook. However, I'm confused about one thing. The notebook originally shipped with WinVista Business, but some time later, the school upgraded his notebook to Win7.
My concern is, will the product key printed under the notebook work with a Win7 restore disk, or will it ONLY work with WinVista?

Also, and this probably goes beyond the scope of this thread, if I install Ubuntu Linux on the notebook, do you know if I could re-install Windows on it later with the restore disks or will I need a full copy of Windows?


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#33
July 23, 2012 at 16:42:28

It will only work with vista.

I am a hardware guy not a software guy but i try to help.


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#34
July 23, 2012 at 16:44:04

You would need a full new copy if you were installing win7.

You can reinstall vista buisness using recovery disks.

I am a hardware guy not a software guy but i try to help.


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#35
July 23, 2012 at 16:55:29

Yes, that's what I assumed. Thanks for confirming my suspicion.

As for my question about installing linux, is that what your last response is about? I can install linux on the notebook (thereby wiping Windows from the disk) then install it back again using the restore disks? The recovery disks don't require an existing copy of windows on the hard drive?
I always thought restore/recovery disks depended on some files hidden in a directory available only when attempting to do a restore.


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#36
July 23, 2012 at 17:02:29

Hmmm, not sure about wiping the hard drive, putting linux on it then later on using recovery disks to install vista.
I though they just restored an factory image of the system.

I am a hardware guy not a software guy but i try to help.


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#37
July 23, 2012 at 17:42:22

Some restore disks require files on the drive, but I haven't had any problems with my Lenovo recovery disks (I've tried them on different PCs).

Recovery disks restore an image of the system, else they would take hours reinstalling all the crapware that came with them. The recovery disks don't require an installed version of Windows, meaning that you could wipe the drive and still use the disks.

You could wipe the drive and put Linux on it. You will still be able to reinstall Windows. You just would have to boot off of the recovery disks.

Hope this cleared up a few things.

You've been helped by a 14 year old.


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#38
July 23, 2012 at 18:20:50

Oh, so there is a difference between restore and recovery discs. I assumed that they were synonymous. Well that definitely clears things a lot for me.
Well, in any case I found a Lenovo support page where I can order a recovery disc from them. So tomorrow I'll be giving them a call. Thankfully, the notebook is still under warranty so it shouldn't cost too much. Hopefully, with this recovery disc the problem will be fully resolved.

So, thanks for your help through all this time. You've answered all my questions. You were a big help, truly.


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#39
July 23, 2012 at 19:24:42

You're welcome.

You've been helped by a 14 year old.


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