I have copied a section of the quoted web site to help you stop the reboot
process to enable you to fix the system.
It is © 1997-2007 Sophos Plc. All rights reserved and I hope they will
understand.
"6. My computer is continuously rebooting, how can I download RESOLVE?
Often when a computer is infected with W32/Blaster-A it restarts every few
minutes, usually with a message similar to "Windows must now restart because
the Remote Procedure Call (RPC) Terminated Unexpectedly". This prevents the
required patches and files from being downloaded.
To stop this on Windows XP, select Start|Run, then type:
shutdown -a
to abort the shutdown. You will then be able to disinfect automatically or
manually as described above.
Where possible, download the RESOLVE W32/Blaster-A self-extractor on another
computer. Save it to floppy disk and run the self-extractor on the affected
computer.
If you cannot download on another computer, disable Distributed COM to
prevent this rebooting.
Windows XP
a.. Select Start|Run and type
dcomcnfg.exe.
b.. Select Console Root|Component services.
c.. Open the Computers subfolder.
d.. Right-click on My Computer|Properties.
e.. Click the Default Properties tab.
f.. Deselect 'Enable distributed COM', click Apply then click OK.
g.. Restart the computer.
Set the options back to normal after applying relevant patches and IDEs."
