No access to systemdisk Access denied.

[Guest]

I think my pc have been hacked.
I have no access to registry, a lot of program dont work, outlook express
one important file is missing so all mails are locked in. I have tried to
reinstall WinXP (write over) and some important missing files cannot be
repaired. SP2 cannot be installed as access is denied for some files.
All points to restore system is gone, I cannot run safe mode.
I cannot log in as administator to fix problems.
The program for my ADSLconnection is not working and now uninstalled due to
traffic over the modem.
Something read my HD and use the modem. If I unplug the USBmodem it stops.
As soon as I connect the modem the reading (or writing) starts again.
Also some driver is missing for USB so USB ports dont work properly but
nothing wrong with modem and internet connection and this without the program
from my ISP needed to connect. (uninstalled)

I want to get control over my HD again, please help me. I have all
pestprograms up and running and also ZoneAlarm and I havnt open any unknown
file lately and not runned any unknown program. I cant open my own files,
have no rights, meaning access denied.
Thanks for your help.

 

[Guest]

Before trying any of the solutions below, see if you can run a virus scan
of your harddrive. Also run a spyware/malware check
Ad-Aware SE Personal Edition - Download Free version and Run It!
http://www.download.com/3000-2144-10045910.html?part=69274&subj=dlpage&tag=button

How to take ownership of a file or folder in Windows XP
http://support.microsoft.com/default.aspx?scid=308421

"Access is Denied" Error Message When You Try to Open a Folder
http://support.microsoft.com/default.aspx?kbid=810881