unload.msi ?!?

I deleted some malware form a friends pc using the standard removal procedures listed in the sticky thread here,and after rebooting the pc I get a windows installer prompting to install something from hp. But when I select ok to let it go ahead and install it says that the file it's looking for is on a network resource that is unavailible. I'm guessing that the file that was deleted was infected with malware so adaware just deleted it. I did a google search to look for the required file and try to get some more info on what it is that was deleted but I couldn't figure out what program it belongs to. All I know is that it's something from hp. Also in the screensshot I posted you will see the pompts I get whenever the pc is booted up. I just need to know what I deleted and how to reinstall it so it's working again.
Thx,
Grimmer

Pc specs:

Operating System :Microsoft Windows XP Media Center Edition
OS Service Pack :Service Pack 2
Motherboard:
CPU Type AMD Athlon X2 Dual Core Processor
Motherboard Name Unknown
Motherboard Chipset Unknown
System Memory 960 MB
BIOS Type Award (09/07/06)

Display:
Video Adapter NVIDIA GeForce 6150 LE (256 MB)
3D Accelerator nVIDIA C51
Monitor HP vs19 flat panel monitor [NoDB] (CNN6390GPS)

Multimedia:
Audio Adapter Realtek HD Audio rear output

Partitions:
C: (NTFS) 181705 MB (168181 MB free)
D: (FAT32) 9057 MB (558 MB free)
Total Size 186.3 GB (164.8 GB free)
Network:
Network Adapter NVIDIA nForce Networking Controller
Network Adapter SMC2862W-G EZ Connect g 2.4Ghz 802.11g Wireless USB 2.0 Adapter (192.168.0.10)
Modem Data Fax SoftModem with SmartCP