Hi gu4800, Welcome.
First of all one reason, for sure, that your computer is running slowly is the number of programs and processes you have running.
Let's do a little cleanup first and see if that helps. Ordinarily we wouldn't do it this way but let's see if we can get rid of all that Logitech clutter first.
First thing you need to do is relocate the HiJackThis program out of the temp file it is in and put it into it's own folder that you create.
To do this follow these instructions;
To create a new folder:
Click START > My Computer > Local Disc C: > Program Files
Now, RightClick on an Empty Area and select New > Folder & name it HijackThis and Click ENTER.
To Extract HijackThis:
Now, RightClick your HijackThis ZIP File and select Extract All > Next > and browse to your newly created HijackThis Folder (C:\Program Files\HijackThis)and click Next.
Once you have done this I would like you to run HiJackThis again and put checkmarks next to all of the following entries;

R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = http://red.clientapps.yahoo.com/cust...ch/search.html

O4 - HKCU\..\Run: [LDM] C:\Program Files\Logitech\Desktop Messenger\8876480\Program\LogitechDesktopMessenger .exe
O4 - HKCU\..\Run: [swg] C:\Program Files\Google\GoogleToolbarNotifier\1.0.720.3640\Go ogleToolbarNotifier
O4 - Global Startup: Logitech Desktop Messenger.lnk = C:\Program Files\Logitech\Desktop Messenger\8876480\Program\LDMConf.exe.exe

O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
O18 - Protocol: bw+0 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw+0s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw-0 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw-0s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw00 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw00s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw10 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw10s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw20 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw20s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw30 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw30s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw40 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw40s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw50 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw50s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw60 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw60s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw70 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw70s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw80 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw80s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw90 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw90s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwa0 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwa0s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwb0 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwb0s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwc0 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwc0s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwd0 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwd0s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwe0 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwe0s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwf0 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwf0s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwfile-8876480 - {9462A756-7B47-47BC-8C80-C34B9B80B32B} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\GAPlugProtocol-8876480.dll
O18 - Protocol: bwg0 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwg0s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwh0 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwh0s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwi0 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwi0s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwj0 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwj0s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwk0 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwk0s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwl0 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwl0s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwm0 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwm0s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwn0 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwn0s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwo0 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwo0s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwp0 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwp0s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwq0 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwq0s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwr0 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwr0s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bws0 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bws0s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwt0 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwt0s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwu0 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwu0s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwv0 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwv0s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bww0 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bww0s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwx0 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwx0s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwy0 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwy0s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwz0 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwz0s - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: offline-8876480 - {20DF6780-F448-4F7B-B943-9E3AA49E2FC1} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll

Once you have placed checkmarks next to all of the above click the FIX NOW button on HJT.
Exit HJT and reboot.

Run a new HJT scan, save the log and post it here and we can see how things stand.
Judy