Xp cycling boot After malwarebyte clenaning

Hello I have a XP SP3 updated,  after clean it with malwarebyte is in booting loop, Starts to boot an suddenly reset and begin to start. If I try to boot in safe mode do the same.

I need to recover the system.... If Is possible,

Can I read some log? Can I restore the core system from another Xp system?

Thanks
limmontreefreeAsked:
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aadihCommented:
Can you boot up in safe mode with command prompt?  (Suspect: perhaps not.)
limmontreefreeAuthor Commented:
Not I can't start anyway...

But if it will be necessary I could put the disk n another computer.

thanks
marsiliesCommented:
What brand/model PC?

If you have an XP install disc, you can run a repair install.
http://pcsupport.about.com/od/operatingsystems/ss/instxprepair1.htm

Note that you'll need an XP install disc that's the same Edition & License as what's installed on the computer (e.g. XP Home Edition, OEM license). Check the license sticker on the PC.

Also, you should make sure the XP install disc has SP3 on it. If you have an install disc with an earlier SP (or no SP), you can slipstream SP3 onto it:
http://winsupersite.com/article/windows-xp2/slipstreaming-windows-xp-with-service-pack-3-sp3-128464

Once the repair install is finished, all the MS updates released post SP3 will have to reinstalled. Windows Update will do this automatically.

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limmontreefreeAuthor Commented:
Thanks I'll try and tell you.
nobusCommented:
if the above fails, try this method :
windows could not start because the following file is missing or corrupt:  \WINDOWS\SYSTEM32\CONFIG\SYSTEM
http://support.microsoft.com/kb/307545
----------------------------------------------------------------------------------------------
An easier way is to boot from a Bart PE CD (or UBCD4Win CD) and use the file manager for manipulating files. Here  the procedure :
1. rename c:\windows\system32\config\SYSTEM to c:\windows\system32\config\SYSTEM.bak
2. Navigate to the System Volume Information folder.
it contains some restore {GUID} folders such as "_restore{87BD3667-3246-476B-923F-F86E30B3E7F8}".
The restore points are in  folders starting with "RPx under this folder.
3. In such a folder, locate a Snapshot subfolder. This is an example of a folder path to the Snapshot folder:  C:\System Volume Information\_restore{D86480E3-73EF-47BC-A0EB-A81BE6EE3ED8}\RP1\Snapshot
4. From the Snapshot folder, copy the following file to the c:\windows\system32\config folder
 _REGISTRY_MACHINE_SYSTEM
5. Rename _REGISTRY_MACHINE_SYSTEM to SYSTEM
6. Exit Bart PE, reboot and test

Use a fairly recent restore point from at least a day or two prior to problem occurring .

** you can add the other hives also with this procedure

http://www.nu2.nu/pebuilder/       BARTPE
http://www.ubcd4win.com/            UBCD4WIN
limmontreefreeAuthor Commented:
Thanks It's working again....
nobusCommented:
what method did you use?
limmontreefreeAuthor Commented:
The first, so  I have not had to use the second.

Thanks again.
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