Application unable to start correctly 0xc0000005 on HP G60-235DX

Hello, I am trying to repair my son's HP G60-235DX laptop which recently began getting error messages when attempting to open .exe files. I have researched other sites and this forum and tried the following:
Edit registry per link: Can't open .EXE files in Windows 7 or Windows Vista
Run chkdsk /f /r
Check memory for errors using system utilities
Nothing is working. When I try to open any .exe file, I get this error message.
I cannot open IE or Firefox, so cannot access internet to download any fix utilities.
I have created a bootable CD and tried to restore to a previous point in time, but get messages that restore failed to extract D:\Windows\inf\asp.net\000A\aspnet_perf2.ini from the restore point and that restore point was damaged or deleted during restore procedure. Now restore points don't appear as available any longer. I have checked the logs and find the 0xc000005 message appearing with faulting app firefox.exe and faulting module xul.dll as well as faulting app qp.exe and faulting module _cdplayer.dll, so it appears there may be an issue with dll's. The antivirus installed on laptop is AVG 2013, but I can't even open that to scan for virus or malware. I can boot to CD, but it doesn't appear that I can access anything on C: drive. BTW: I did try to revert to an earlier version of IE before 10, but it appears that either no earlier version is available to revert to or it is corrupt and won't open. Additional messages in log are: The SCRegSetValueEXW call failed for failure actions with the following error: Access is Denied, and \Driver\WUDFRd failed to load. Posts on this site seem to indicate that restoring Windows won't fix the error, so any suggestions would be greatly appreciated.

After checking for infection using one of the bootable AV's Jacee posted or Windows Defender Offline, run SFC /SCANNOW Command.

If it won't run from Win7 then run it from System Recovery Options at boot or from booted installer or System Repair Disk using SFC /SCANNOW Run in Command Prompt at Boot.

Once System files are checked if problem persists, attempt to create a new User account following User Account - Create - Windows 7 Help Forums. If necessary use the Built-in Administrator Account - Enable or Disable from Windows or Built-in Administrator - Enable from WinRE - Windows 7 Forums

If new User account won't create or function, then try to run a Repair Install.

If all fails, I would cut my losses, copy out your files and run HP System Recovery or get the vastly superior Clean Reinstall - Factory OEM Windows 7 without the crippling HP bloatware and useless duplicate utilties that interfere with better versions built into Win7.

Thank you for the suggestions. I downloaded and ran Avira and Kaspersky's bootable disks...Neither found anything. Will try the next suggestions before a clean reinstall and let u know if anything works.

I ran the sfc /scannow command and found some corrupt files: spwizimg.dll and background.bmp that could not be repaired with the system utility. The CBS log was very long and I scanned over it to check for issues. There were some references to "Failed to internally open package." and "Warning: Unrecognized packageExtended attribute." statements in log. I also checked the Disk Mgmt to determine if restore partition was available and it is not. Based on these results... would u recommend that I attempt to do a Repair Install or just cut my losses and wipe everything with a clean install?

You can try the Repair Install to see how it works. But since you need to make the latest official installer disk/flash stick anyway, I'd strongly consider a Clean Reinstall - Factory OEM Windows 7 .

But if this is the original factory preinstalled HP WIn7 then it is one of the worst installs one can have, larded with bloatware and duplicate utilities which interfere with better versions built into Win7. So I would recommend you follow the steps to get a perfect Clean Reinstall - Factory OEM Windows 7.

A middle option is to run HP System Recovery to see if it offers the Minimal Recovery choice, which is akin to a Clean Reinstall but leaves the crappy HP Wireless Manager. This can be uninstalled however to default to Win7's superior Wireless Manager.

OK. Now I need some advice.... I finally gave up trying to repair the laptop and did what I thought was a clean install. After completing the procedure, during boot up I'm getting a screen asking me to select the OS that I want to boot with two Windows 7 options. The HD is partitioned to only one drive, but there is a section that is designated "System Reserved". During the install, I selected the option to format the unreserved section of HD, so thought that would wipe out any remaining system files etc. This is my first attempt at a Win 7 install.....Did I do something wrong??

Are you following the steps in Clean Reinstall - Factory OEM Windows 7 as they couldn't be more specific? You were handed these steps which result in a perfect install in my last post.

If you don't have a particular partitioning scheme in mind (e.g. you want to use a separate data partition from the OS partition) then it says quite clearly to delete all partitions using the Drive Options in Steps 7 and 8 of Clean Install Windows 7, click Next to let the installer create and format your install partition for you.

I thought I was following the steps as outlined. Only thing I didn't do was remove the 100MB reserved section. Didn't think it would be a problem to leave intact, but apparently it is.

If you don't want to do it over correctly then post back a screenshot of Disk Management - Post a Screen Capture Image so we can see where the new install landed, since if there is Dual Boot menu it means the old install was most likely left on there.