Jst two days i switched of my firewall and antivirus and the consequence is

i am in administrator login

i have to delete a bad registry key whick my malware bytes discovered
but its malware bytes and any software not able to delete it

i tried thru regedit.exe

i tried through command prompt using reg command . its also not able to do it (after closing explorer.exe)

i also don have space to repair BY windows XP cd

i also cant delete in any mode (safe mode , cmd mode )

i also cant delete on boot up by sftware

BUt i know its definitely 100 % malware Key

its in winlogon subkey . and another in HK Root ley

i have browsed through all net i havent get any idea

pls help

but don ask me to
reinstall os , search net etc please

I need to win against this

From the ip adress that my firewall bocket during bifferoverflow . the ip adress goes to russia

keys
====
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\… Helper Objects\{3a1d08a3-585e-42ba-bf27-5274d3f… (Trojan.Vundo.H)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\… NT\CurrentVersion\Winlogon\Notify\chjzix… (Trojan.Vundo.H)

HKEY_CLASSES_ROOT\CLSID\{3a1d08a3-585e… (Trojan.Vundo.H)

* 2 days ago
* – 6 days left to answer.

Additional Details
Also i checket permissions . its not allowing me to change . says "permission denied"

But the irritating part is i am in Admin login
What else shud i be to change permissions . OR the i think the malware changed my admin previledges by WINLOGON key

2 days ago
hai
i have used
hijac this , Spybot s&d , malware bytes , mcafe anti malware , and avg anti malware ( worst of all . din even detec it)
everything possible 🙁

my same previous quest was deleted as someone voted for no best answer
sorry for tht