restart pc = missing file every reboot!!!

[barkerb23]

well every time i restart my pc, i have to reinstall windows xp because theres always a file missing at start up,
after i reinstalled xp i ran a virus scan and theres 31 infections and many, different viruses in my system32 folder. heres the log

Malwarebytes' Anti-Malware 1.50.1.1100
www.malwarebytes.org

Database version: 5815

Windows 5.1.2600 Service Pack 3
Internet Explorer 6.0.2900.5512

2/19/2011 11:32:21 PM
mbam-log-2011-02-19 (23-32-18).txt

Scan type: Quick scan
Objects scanned: 128342
Time elapsed: 28 minute(s), 45 second(s)

Memory Processes Infected: 4
Memory Modules Infected: 1
Registry Keys Infected: 6
Registry Values Infected: 10
Registry Data Items Infected: 1
Folders Infected: 0
Files Infected: 13

Memory Processes Infected:
c:\WINDOWS\Temp\34byl.exe (Trojan.Downloader) -> 3568 -> No action taken.
c:\WINDOWS\Temp\o6jv.exe (Trojan.Dynamer) -> 3608 -> No action taken.
c:\WINDOWS\Temp\o6jv.exe (Trojan.Dynamer) -> 2652 -> No action taken.
c:\WINDOWS\svc2.exe (Trojan.Sisproc.Gen) -> 2192 -> No action taken.

Memory Modules Infected:
c:\WINDOWS\system32\nwcwks.dll (Trojan.Inject) -> No action taken.

Registry Keys Infected:
HKEY_CLASSES_ROOT\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D} (Worm.Nyxem) -> No action taken.
HKEY_CLASSES_ROOT\TypeLib\{248DD890-BB45-11CF-9ABC-0080C7E7B78D} (Worm.Nyxem) -> No action taken.
HKEY_CLASSES_ROOT\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D} (Worm.Nyxem) -> No action taken.
HKEY_CLASSES_ROOT\MSWinsock.Winsock.1 (Worm.Nyxem) -> No action taken.
HKEY_CLASSES_ROOT\MSWinsock.Winsock (Worm.Nyxem) -> No action taken.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advan ced\Folder\Hidden\NOHIDORSYS (Malware.Trace) -> No action taken.

Registry Values Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explo rer\Run\2z4in (Trojan.Downloader) -> Value: 2z4in -> No action taken.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explo rer\Run\s4u9 (Trojan.Dynamer) -> Value: s4u9 -> No action taken.
HKEY_USERS\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NetLog2 (Trojan.Sisproc.Gen) -> Value: NetLog2 -> No action taken.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explo rer\Run\apps (Trojan.Agent) -> Value: apps -> No action taken.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\userini (Rootkit.ADS) -> Value: userini -> No action taken.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explo rer\Run\userini (Rootkit.ADS) -> Value: userini -> No action taken.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\userini (Rootkit.ADS) -> Value: userini -> No action taken.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explor er\Run\userini (Rootkit.ADS) -> Value: userini -> No action taken.
HKEY_USERS\.DEFAULT\Software\Microsoft\Windows NT\CurrentVersion\Windows\win (Malware.Trace) -> Value: win -> No action taken.
HKEY_USERS\.DEFAULT\Software\Microsoft\Windows NT\CurrentVersion\Windows\init (Malware.Trace) -> Value: init -> No action taken.

Registry Data Items Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advan ced\Folder\Hidden\SHOWALL\CheckedValue (PUM.Hijack.System.Hidden) -> Bad: (0) Good: (1) -> No action taken.

Folders Infected:
(No malicious items detected)

Files Infected:
c:\WINDOWS\system32\nwcwks.dll (Trojan.Inject) -> No action taken.
c:\WINDOWS\Temp\34byl.exe (Trojan.Downloader) -> No action taken.
c:\WINDOWS\Temp\o6jv.exe (Trojan.Dynamer) -> No action taken.
c:\WINDOWS\svc2.exe (Trojan.Sisproc.Gen) -> No action taken.
c:\WINDOWS\Fonts\services.exe (Trojan.Agent) -> No action taken.
c:\WINDOWS\system32\MSWINSCK.OCX (Worm.Nyxem) -> No action taken.
c:\WINDOWS\system32\calc.exe (Trojan.Agent.Gen) -> No action taken.
c:\WINDOWS\Temp\7cx66hjl.exe (Malware.Packer.Gen) -> No action taken.
c:\WINDOWS\Temp\eq88jce8p.exe (Trojan.Sisproc.Gen) -> No action taken.
c:\WINDOWS\system32\6c6s4.log (Malware.Trace) -> No action taken.
c:\documents and settings\brandon\application data\wiaservg.log (Malware.Trace) -> No action taken.
c:\WINDOWS\Temp\wpv411298036282.exe (Trojan.Agent) -> No action taken.
c:\WINDOWS\explorer.exe:userini.exe (Rootkit.ADS) -> No action taken.


im not sure if i should remove them or not
HELP!!!!!!!!!!!!