Need to reclaim space allotted to a program cache

[L Olver]

Hi all.
So,I'm running Windows XP sp3 and I installed a GearHead/ Pixart webcam PAC7302. Within it's settings I was trying to allocate cache space for video captures and I accidentally allotted WAY too much and it has been freezing up my C drive. When I would try to go back into those settings to change that, the program would run so slow and not allow that setting screen to even open to change it. I had uninstalled with the GearHead CD that came with the camera, hoping the uninstall would surrender that allotted space. But , as soon as I re install that software for the camera, it seems to find a settings file again, because It still makes my computer operate crazy slow and I can't get into the settings to check the space allocation.
I have tried using CCLEANER and checking control panel that it shows as "removed" before re installing it again. CCLEANER DOES show a PixArt file that still exists called "C:\WINDOWS\PixArt\PAC7302\Monitor.exe" but I'm not sure if it is safe to delete it or if it can cause a problem at all. I have also tried using system restore between re installs. The restore works until I install the camera software. I have used this camera and software for YEARS without a problem so, I know that the CD is not the problem.
So,is there any backdoor way that I can effectively, clear old gearhead/ pixart settings/cache and/or check the drive for the previously allotted space and reclaim it?

[pam123]

What it is : monitor.exe - PC Pitstop Process Library
monitor.exe - What is the monitor.exe from PixArt Imaging Incorporation? (id:3865)

The program, it's one of those that runs automatically at start up, can be disabled : How do I disable some of my Startup programs?

With it not running can you change the cache ?

[L Olver]

Thank you.
I had found the info contained in that link during my search for a solution before I came to the forum but, I'm not sure why Monitor.exe was there AFTER I uninstalled the program nor, what it effectively does. That is why I suspected it may have something to do with the problem. No, even when disabled, I cannot gain access within the software to change it . I can open the software and the "file" tab drops down the menu but , choosing "Allocate file space" doesn't open the settings window as it once did.

[pam123]

It looks like you're going to have uninstall the software manually.
Your likely right in thinking your oversight with the cache is causing the problem, the software may no longer be able to uninstall itself and settings and registry items are remaing behind.
You need to see everything on C so, after you get all the obvious program files do a survey of your C drive with show hidden files (and extensions) checked.
Here's how to do that : Microsoft Corporation
When in doubt leave the file alone!
You can always get it later .
Now run CCleaner again.

If things work hide the files and extensions when you're done.