2 Error Messages & computer restarting itself.

[KateetaK]

Alright, I have 3 problems so to save space I will put them all here.

---The 1st problem is that I have been getting an error message on startup (every time I startup, that is) that reads:

"DMAScheduler has encountered a problem and needs to close."

---The 2nd problem is that I had an error message pop up earlier today that read:

"Windows Logon UI has encountered a problem and needs to close."

---The 3rd problem is that lately, out of nowhere, my computer will just restart itself.

The reason I am posting this is because I have no idea what is causing/has caused these problems with my system and am seeking a solution. If anyone out there could help me fix these problems I would be greatly appreciative. If I have missed anything or you need more information relating to these issues, please feel free to ask and I will gladly provide. Any and all help is welcome and as I said before, greatly appreciated. Thank you very much for your time.

[Dencandy]

Hello KateetaK.

1 - DMA stands for Direct Memory Access, which is essential on modern computers and enables them to operate very fast. You can read about it in Wikipedia here. It sounds like you've got a big problem & I don't know the solution.

2 - Logon UI refers to the login screen, etc (User Interface) and there's an answer to problems with it here (from webpronews).

3 - Your computer booting up randomly is probably related to the first 2, but I don't know how.

I think you've got a major foul up with you system files and/or your hard disk. Sorry I can't help more than this.

[catgate]

Like Dencandy I am no expert.( I come here for the beer really). However It may help if you tell us what version of M$ you are using, and a bit about your computer.

I would first of all check for rubbish that might have crept in, viruses and general malware. These things can be quite unkind. Do you have ant kind of protection on your machine?

If not I would suggest you download Crapcleaner and run that, and then run Trend Housecall and see what that throws up.

http://www.softpedia.com/get/Security/Secu.../CCleaner.shtml

http://housecall.trendmicro.com/uk/

[KateetaK]

Thank you for your help thus far, I am trying to solve the Logon UI error right now but it sounds like I should be more concerned about the DMAscheduler error.

A little about my computer: I'm using Windows XP Media Center Edition, it's a HP Pavilion a1610n. I am using AVG anti-virus & SpyBot Search & Destroy which I have run scans on several times and they found nothing. I will give the programs you mentioned a shot, catgate.

[Irene]

Unfortunately, I am no more experienced than the others who have posted, but I certainly think it looks as though you have some problems.

Someone else more knowledgeable may have something to add but,

It may be worth posting in the link below, just in case you have malware problems....

MALWARE REMOVAL

Good luck!

Perhaps you would let us know how things progress.

[KateetaK]

I've actually been trying to get help on that forum for a few days now to no avail. I was having another problem and I used HiJackThis and submitted a logfile. Whatever it was, I don't think it had anything to do with the DMAscheduler errors and the computer rebooting itself since I was having the problems before that happened.

Anyway, I just submitted a new thread to the forums about the DMAscheduler error and included a logfile scanned by HJT.

Thanks for all the help so far, I appreciate it very much. I've been having a hard time finding help - luckily I came to this forum. I will keep you posted.

[KateetaK]

About the page you submitted about the Logon UI error, Dencandy, I suppose I'm a tad slow but I can't figure this out. I can't seem to find the file it's referring to nor would I know how to move it as it says. It reads:

Open Windows Explorer and navigate to C:WindowsSystem32 folder. Locate the file msgina.dll and move it to d: or some other location. [A new copy of this file will be extracted automatically by XP]

See if the problem persists. If yes, open Command Prompt window and type in:

"SFC /PURGECACHE"

Then, "SFC /Scanow"

[AlanHo]

Have you tried using System Restore to get back to when the computer was working OK?

[Dencandy]

Open Windows Explorer and navigate to C:WindowsSystem32 folder. Locate the file msgina.dll and move it to d: or some other location. [A new copy of this file will be extracted automatically by XP]

See if the problem persists. If yes, open Command Prompt window and type in:

"SFC /PURGECACHE"

Then, "SFC /Scanow"

What this is telling you is that the file msgina.dll has become corrupt. You move it to another location then SFC will replace it on drive c: with a fresh version. Unfortunately I, too, do not know how to move a dll to another location. Can anyone else on the Forum help? Microsoft suggest another way to repair this file here. If their suggestion works you won't need to use the SFC command prompts.

However, if you use the suggestion from webpronews you type in these command prompts just as they are printed on the page you looked at. You run one, then when it's finished, the other. To find command prompt prompt, click on All Programs on the Start Menu, then Accessories, then Command Prompt. It's a black rectangle and you type in exactly what the article says. First one, then, when it's finished, the other.

I also suggest before trying all this, type in Logon UI in your usual search engine and look at the results. This way you will find out more about the problem and may come across more detailed instructions about how to deal with it.

You could also go to Microsoft Help & Support and use their Search function for more advice. Just type in words like Logon UI or msgina.dll and see what you get.

You're going to have a steep learning curve with this problem, I think. Good look.

If System Restore works as AlanHo suggests, you won't have to do any of this.

[KateetaK]

Yeah, I know what they meant just didn't know how to do it. I checked it out and it doesn't seem to be a huge deal and should be easy to resolve.

As for the DMAscheduler, it was nothing big - I had a live chat with an HP tech and got it figured out and am happy to say I am no longer getting the error message at startup.

Thank you for all of your help. :)