Rootkits im System, wie werde ich die wieder los?

win 7 home premium 64bit
Acer, Aspire X3300
AMD Athlon(tm) II X4 630 Prozessor 2,8Ghz
NVIDIA GeForce 9200
AVG Antivirus hat mir 30 Rootkits angezeigt, alle auf der Whitelist
Malewarebyts findet nichts, zeigt aber ab und an eine Fehlermeldung, obwohl z. Zeitpunkt kein Scan durchgeführt wird.
AVG lässt sich nicht einschalten und auch nicht reparieren, habe es Deinstalliert und dann wieder neu drauf-das Problem bleibt.
GMER findet in der Registry mehrere Einträge:
Rootkit scan 2012-08-12 09:11:27
Windows 6.1.7601 Service Pack 1


---- Registry - GMER 1.0.15 ----

Reg HKLM\SYSTEM\CurrentControlSet\services\4981dd83a3e2b376@ImagePath \SystemRoot\System32\Drivers\4981dd83a3e2b376.sys
Reg HKLM\SYSTEM\CurrentControlSet\services\4981dd83a3e2b376@Group Boot Bus Extender
Reg HKLM\SYSTEM\CurrentControlSet\services\4981dd83a3e2b376@ErrorControl 0
Reg HKLM\SYSTEM\CurrentControlSet\services\4981dd83a3e2b376@Type 1
Reg HKLM\SYSTEM\CurrentControlSet\services\4981dd83a3e2b376@Start 0
Reg HKLM\SYSTEM\CurrentControlSet\services\4981dd83a3e2b376@Tag 1
Reg HKLM\SYSTEM\CurrentControlSet\services\4981dd83a3e2b376@DisplayName syshost.exe
Reg HKLM\SYSTEM\ControlSet002\services\4981dd83a3e2b376@ImagePath \SystemRoot\System32\Drivers\4981dd83a3e2b376.sys
Reg HKLM\SYSTEM\ControlSet002\services\4981dd83a3e2b376@Group Boot Bus Extender
Reg HKLM\SYSTEM\ControlSet002\services\4981dd83a3e2b376@ErrorControl 0
Reg HKLM\SYSTEM\ControlSet002\services\4981dd83a3e2b376@Type 1
Reg HKLM\SYSTEM\ControlSet002\services\4981dd83a3e2b376@Start 0
Reg HKLM\SYSTEM\ControlSet002\services\4981dd83a3e2b376@Tag 1
Reg HKLM\SYSTEM\ControlSet002\services\4981dd83a3e2b376@DisplayName syshost.exe

---- EOF - GMER 1.0.15 ----
AVG Scan:
"C:\Windows\system32\drivers\PCIIDEX.SYS";"IRP-Hook, \Driver\pciide IRP_MJ_POWER -> PCIIDEX.SYS +0x2C7C"
"C:\Windows\system32\drivers\PCIIDEX.SYS";"IRP-Hook, \Driver\pciide IRP_MJ_SYSTEM_CONTROL -> PCIIDEX.SYS +0x8AEC"
"C:\Windows\system32\drivers\PCIIDEX.SYS";"IRP-Hook, \Driver\pciide IRP_MJ_PNP -> PCIIDEX.SYS +0x8AB8"
"C:\Windows\system32\drivers\ataport.SYS";"IRP-Hook, \Driver\atapi IRP_MJ_CREATE -> ataport.SYS +0x21880"
"C:\Windows\system32\drivers\ataport.SYS";"IRP-Hook, \Driver\atapi IRP_MJ_CLOSE -> ataport.SYS +0x21880"
"C:\Windows\system32\drivers\ataport.SYS";"IRP-Hook, \Driver\atapi IRP_MJ_DEVICE_CONTROL -> ataport.SYS +0x7500"
"C:\Windows\system32\drivers\ataport.SYS";"IRP-Hook, \Driver\atapi IRP_MJ_INTERNAL_DEVICE_CONTROL -> ataport.SYS +0x74D8"
"C:\Windows\system32\drivers\ataport.SYS";"IRP-Hook, \Driver\atapi IRP_MJ_POWER -> ataport.SYS +0x7528"
"C:\Windows\system32\drivers\ataport.SYS";"IRP-Hook, \Driver\atapi IRP_MJ_SYSTEM_CONTROL -> ataport.SYS +0x1C4E0"
"C:\Windows\system32\drivers\ataport.SYS";"IRP-Hook, \Driver\atapi IRP_MJ_PNP -> ataport.SYS +0x1C4AC"
"C:\Windows\system32\DRIVERS\CLASSPNP.SYS";"IRP-Hook, \Driver\Disk IRP_MJ_CREATE -> CLASSPNP.SYS +0x19E0"
"C:\Windows\system32\DRIVERS\CLASSPNP.SYS";"IRP-Hook, \Driver\Disk IRP_MJ_CLOSE -> CLASSPNP.SYS +0x19E0"
"C:\Windows\system32\DRIVERS\CLASSPNP.SYS";"IRP-Hook, \Driver\Disk IRP_MJ_READ -> CLASSPNP.SYS +0x19E0"
"C:\Windows\system32\DRIVERS\CLASSPNP.SYS";"IRP-Hook, \Driver\Disk IRP_MJ_WRITE -> CLASSPNP.SYS +0x19E0"
"C:\Windows\system32\DRIVERS\CLASSPNP.SYS";"IRP-Hook, \Driver\Disk IRP_MJ_FLUSH_BUFFERS -> CLASSPNP.SYS +0x19E0"
"C:\Windows\system32\DRIVERS\CLASSPNP.SYS";"IRP-Hook, \Driver\Disk IRP_MJ_DEVICE_CONTROL -> CLASSPNP.SYS +0x19E0"
"C:\Windows\system32\DRIVERS\CLASSPNP.SYS";"IRP-Hook, \Driver\Disk IRP_MJ_INTERNAL_DEVICE_CONTROL -> CLASSPNP.SYS +0x19E0"
"C:\Windows\system32\DRIVERS\CLASSPNP.SYS";"IRP-Hook, \Driver\Disk IRP_MJ_SHUTDOWN -> CLASSPNP.SYS +0x19E0"
"C:\Windows\system32\DRIVERS\CLASSPNP.SYS";"IRP-Hook, \Driver\Disk IRP_MJ_POWER -> CLASSPNP.SYS +0x19E0"
"C:\Windows\system32\DRIVERS\CLASSPNP.SYS";"IRP-Hook, \Driver\Disk IRP_MJ_SYSTEM_CONTROL -> CLASSPNP.SYS +0x19E0"
"C:\Windows\system32\DRIVERS\CLASSPNP.SYS";"IRP-Hook, \Driver\Disk IRP_MJ_PNP -> CLASSPNP.SYS +0x19E0"
"C:\Windows\system32\DRIVERS\HIDCLASS.SYS";"IRP-Hook, \Driver\HidUsb IRP_MJ_CREATE -> HIDCLASS.SYS +0x2710"
"C:\Windows\system32\DRIVERS\HIDCLASS.SYS";"IRP-Hook, \Driver\HidUsb IRP_MJ_CLOSE -> HIDCLASS.SYS +0x2710"
"C:\Windows\system32\DRIVERS\HIDCLASS.SYS";"IRP-Hook, \Driver\HidUsb IRP_MJ_READ -> HIDCLASS.SYS +0x2710"
"C:\Windows\system32\DRIVERS\HIDCLASS.SYS";"IRP-Hook, \Driver\HidUsb IRP_MJ_WRITE -> HIDCLASS.SYS +0x2710"
"C:\Windows\system32\DRIVERS\HIDCLASS.SYS";"IRP-Hook, \Driver\HidUsb IRP_MJ_DEVICE_CONTROL -> HIDCLASS.SYS +0x2710"
"C:\Windows\system32\DRIVERS\HIDCLASS.SYS";"IRP-Hook, \Driver\HidUsb IRP_MJ_INTERNAL_DEVICE_CONTROL -> HIDCLASS.SYS +0x2710"
"C:\Windows\system32\DRIVERS\HIDCLASS.SYS";"IRP-Hook, \Driver\HidUsb IRP_MJ_POWER -> HIDCLASS.SYS +0x2710"
"C:\Windows\system32\DRIVERS\HIDCLASS.SYS";"IRP-Hook, \Driver\HidUsb IRP_MJ_SYSTEM_CONTROL -> HIDCLASS.SYS +0x2710"
"C:\Windows\system32\DRIVERS\HIDCLASS.SYS";"IRP-Hook, \Driver\HidUsb IRP_MJ_PNP -> HIDCLASS.SYS +0x2710"

Bitte um Eure Hilfe, wie werde ich die Dinger wieder los