System Restore "bugs"

I ran BitDefender today and found some "bugs" in 2 system restores. How do I get them off my computer? Here's the bitdefender log:

Memory ok
Master Boot Record 80 ok (Windows 95 B20 - Windows 98)
Partition Boot 1 (primary) ok (Unknown MBR/Boot Code)
Partition Boot 2 (primary) (active) ok (Windows NT 2000 NTFS)
C:\System Volume Information\_restore{B37680B2-BA0A-4E5D-BF30-83E44C588624}\RP541\A0069886.exe infected: Application.Adware.PowerReg.3.0
C:\System Volume Information\_restore{B37680B2-BA0A-4E5D-BF30-83E44C588624}\RP541\A0069886.exe unable to disinfect
C:\System Volume Information\_restore{B37680B2-BA0A-4E5D-BF30-83E44C588624}\RP541\A0069887.exe infected: Application.Adware.PowerReg.3.0
C:\System Volume Information\_restore{B37680B2-BA0A-4E5D-BF30-83E44C588624}\RP541\A0069887.exe unable to disinfect
C:\WINDOWS\SYSTEM32\bischk.exe=>(Upx) suspect: Trojan.Proxy.Ranky.Gen
C:\WINDOWS\SYSTEM32\bischk.exe deleted
C:\WINDOWS\SYSTEM32\inetkwschk.exe=>(Upx) suspect: Trojan.Proxy.Ranky.Gen
C:\WINDOWS\SYSTEM32\inetkwschk.exe deleted

---------scan finished---------

Scan Path: C:\;
Files: 346293
Infected files: 6
Scan time: 01:36:04

Virus Definitions: 97590
Scan Plugins: 62


Settings:
[X] Verify Memory
[X] Scan boot sector
[X] Scan archives
[X] Scan emails