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Windows XP Pro will not boot/ combofix problem?


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#1
sirdoctoroftardis

sirdoctoroftardis

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I recently ran combo fix and it created a restore point and downloaded the console ERUNT. I was trying to remove malaware and I think a few of the system files may have been deleted since I manually restarted my PC when Combo-Fix froze. I can no longer boot, instead I get a black screen after the Windows XP Pro screen with the blue bar.
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#2
rshaffer61

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Do you have your XP installation disk?
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#3
sirdoctoroftardis

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no I do not
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#4
rshaffer61

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Can you borrow one?
It needs to be the same type as what you have installed Xp Pro
We will need it to do a repair installation
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#5
sirdoctoroftardis

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I have another computer with xp pro and a xp home disc, but i got the xp pro image from my school, so no. Is there a way to download specific files or use the other computer?
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#6
rshaffer61

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No the XP disk needs everything on it to replace any files that are corrupted or missing.
The other option would be to run a SFS /SCANNOW but there again the XP disk will be needed.

You also would need to be in windows to run this and as that is not a option right now then the issue is back to square one.

We can attempt to replace the userinit file but then again we need the XP Pro disk.

As you can see everything relies on that disk.

Edited by rshaffer61, 23 July 2009 - 09:24 AM.

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#7
sirdoctoroftardis

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You are sure that having another working computer with xp pro would not help the situation. Could I create some sort of rescue disc or a repair disc?
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#8
rshaffer61

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You can try this...

I can't guarantee it will work...and it requires the machine you make the disk on AND the machine you are fixing are both running XP.

Please download RC.ISO and save it somewhere you can find it.
Also download MagicISO.

Start MagicISO. You should see a window informing you about the full version of MagicISO.
In the bottom right select Try It! and the program will open.
Click on File and then on Open and navigate to the RC.ISO file you downloaded. Select it, and click Open.

First, we'll need to add a clean version of userinit.exe to the current RC.ISO

* In the upper right pane, double click on the i386 folder.
* Right click in the upper right pane and select Add Files...
* Navigate to C:\Windows\System32 and select userinit.exe
* Then click Open to add userinit.exe to the CD image.
* Click File and select Save As...
* Name the file RCplus and save it somewhere you can find it.


Next, we'll need to burn the newly created image to a disk that we can use to fix the problem.

* Put a blank CD-R disk in your CD burner and close the tray. If an AutoPlay window opens, close it.
* Click on Tools and select Burn CD/DVD with ISO.... A window will appear.
* Click on the little folder to the right of CD/DVD Image File then navigate to the newly created RCplus.iso Image file and click Open.
* In the CD/DVD Writing Speed drop-down menu choose the 8X setting.
* Under Format make sure that Mode 1 is selected.
* And finally, click on the Burn it! button to burn RCplus.iso to disk.


Once the disk is burned, put it in the machine you want to fix and restart it.
Boot to the CD just as you would with a Windows XP disk.
At the Welcome to Setup screen, press R to enter the Recovery Console.
Choose the installation to be repaired by number (usually 1) and press Enter.
When you are asked for the Administrator password, enter the password or leave it blank (default) and press Enter.

At the C:\Windows> prompt, type the following commands pressing Enter after each one. Note: Watch the spaces.

D:
cd i386
copy userinit.exe c:\windows\system32
exit


After putting in the third command, you should receive the message 1 file copied which will indicate that the operation succeeded.
Now take out the CD and reboot your computer to normal mode. Try to log in and it should let you back in.

Thanks to wannabe1
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#9
sirdoctoroftardis

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I started following the directions but in the writing speed tab there is no 8x only 4x 10x 16x and 24x
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#10
rshaffer61

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4x then.. the slower the better chance of getting a good burn
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#11
sirdoctoroftardis

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it asks if I want to overwrite userinit.exe, should I do this?
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#12
rshaffer61

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Yes
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#13
sirdoctoroftardis

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it still seems to do nothing, just a black screen without a mouse, normally when windows boots it flashes after the windows screen and then I see my mouse
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#14
rshaffer61

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Try booting into Safe Mode now since we replaced the file.
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#15
sirdoctoroftardis

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now it just stops at multi(0)...\WINDOWS\System32\Drivers\Mup.sys
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