Msiexec.exe System Error

You may have to reinstall your Windows. Does your system come with WIndows 7 Installation Disk? Or have you created a System repair disk after you got your system?

Use the Installation Disk ot System Repair disk to fix the problem. Before you do that, make sure you backup all your important Data on a removable disk.

Good Luck!!

See if you can get to C: properties this way:

Can you go to START, right mouse click COMPUTER and click MANAGE

In the Computer Management Window, select "DISK MANAGEMENT", then on the top right Pane, right mouse click OS (C): and click Properties. In the Properties box, select TOOLS tab, and click CHECK NOW. Make sure "SCAN AND ATTEMPT RECOVERY OF BAD SECTORS" is checked.

Restart Windows.

Before you go ahead reinstall or repair windows.

Can you try this one more time? I suspected when you used Malwarebyte to scan for the first time, if the virus was already in your system, they might have the ability to change some configuration in your malwarebyte program making your scan invald. Try uninstall Malwarebyte in regular Windows mode.

Then go in Safe mode with networking, download Free version of Malwarebyte. Install, update and perform a full scan again.

Failing which you may have to go to the route of repairing or reinstalling Windows. Make sure you back up all your important data files.

I managed to get some information from Microsoft Help for your reference. This is so much that I can do so far, Good Luck!!

sfc/scannow: Windows Resource Protection could not perform the requested operation:

OPTION A: See the "How to obtain help..." section of http://support.microsoft.com/kb/2360131

For home users, no-charge support is available by calling 1-866-PCSAFETY (and/or 1-866-234-6020 and/or 1-800-936-5700) in the United States and in Canada or by contacting your local Microsoft subsidiary. There is no-charge for support calls that are associated with security updates. When you call, clearly state that your problem is related to a Security Update and cite the update's KB number (e.g., KB2360131).

Or you can...

Start a free Windows Update support incident email request
https://support.microsoft.com/oas/default.aspx?gprid=6527

Customers who experience issues installing Microsoft security updates also can visit the CSS home page for assistance: https://consumersecuritysupport.microsoft.com/

OPTION B: There is a very good chance that you are seeing the effects of a hijackware infection!

NB: If you had no anti-virus application installed or the subscription had expired *when the machine first got infected* and/or your subscription has since expired and/or the machine's not been kept fully-patched at Windows Update, don't waste your time with any of the below: Format & reinstall Windows. A Repair Install will NOT help!

Microsoft PCSafety provides home users (only) with no-charge support in dealing with malware infections such as viruses, spyware (including unwanted software), and adware.
https://support.microsoft.com/oas/default.aspx?&prid=7552&st=1

Also available via the Consumer Security Support home page: https://consumersecuritysupport.microsoft.com/

Otherwise...

1. See if you can download/run the MSRT manually: http://www.microsoft.com/security/malwareremove/default.mspx

NB: Run the FULL scan, not the QUICK scan! You may need to download the MSRT on a non-infected machine, then transfer MRT.EXE to the infected machine and rename it to SCAN.EXE before running it.

2a. WinXP => Run the Windows Live Safety Center's 'Protection' scan (only!) in Safe Mode with Networking, if need be: http://onecare.live.com/site/en-us/center/howsafe.htm

2b. Vista or Win7 (but not Vista 64-bit or Win7 64-bit) => Run this scan instead: http://onecare.live.com/site/en-us/center/whatsnew.htm

3. Now begin your own, new thread in one (only) of the following recommended forums for assistance by an expert in such matters. DO NOT SKIP THIS STEP!!

• SpywareHammer: Malware Removal
http://spywarehammer.com/simplemachinesforum/index.php?board=10.0

• Spyware Warrior: Help with spyware removal
http://www.spywarewarrior.com/viewforum.php?f=5

• DSL Reports: Security Cleanup
http://www.dslreports.com/forum/cleanup

• Bluetack: Malware Removal
http://www.bluetack.co.uk/forums/index.php?showforum=172

• AumHa: Malware Removal
http://aumha.net/viewforum.php?f=30

OPTION C: See...

Cleaning a Compromised System
http://technet.microsoft.com/en-us/library/cc700813.aspx

Back-up any personal data (none of which should be considered 100% trustworthy at this point) then format the HDD & do a clean install of VISTA. Please note that a Repair Install (AKA in-place upgrade) will NOT fix this!

Yes get Malwarebyte to fix the registry,there should be a Remove button or something. It will then prompt you to restart windows to do the fix.

It appears that your Malware cannot be removed directly from Malwarebyte itself.

Here is the Post from Malwarebyte on this particular subject during the last two days:

http://forums.malwarebytes.org/index.php?showtopic=102754&st=0

You may want to seek help directly with Malwarebyte staff by providing them the scan result.