Try running the patcher in windows safe mode.
Boot up your computer, before windows loads hit F8 until you get to windows boot menu. Then select 'Windows Safe Mode with networking' and then run the patcher.
I had this issue a while back and this worked for me.
The menu should be like this depending on your flavor of windows, I'll bold and underline the option to pick
Quote
Windows Advanced Options Menu
Please select an option:
Safe Mode
Safe Mode with Networking
Safe Mode with Command Prompt
Enable Boot Logging
Enable VGA mode
Last Known Good Configuration (your most recent settings that worked)
Directory Services Restore Mode (Windows domain controllers only)
Debugging Mode
Start Windows Normally
Reboot
Return to OS Choices Menu
Use the up and down arrow keys to move the highlight to your choice.
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Choose Advanced Options for: Microsoft Windows Vista
Please select an option:
Safe Mode
Safe Mode with Networking
Safe Mode with Command Prompt
Enable Boot Logging
Enable low-resolution video (640x480)
Last Known Good Configuration (advanced)
Directory Services Restore Mode
Debugging Mode
Disable automatic restart on system failure
Disable Driver Signature Enforcement
Start Windows Normally
Description: Start Windows with only the core drivers and services. Use
when you cannot boot after installing a new device or driver.
Edited by SGT Unther, 21 February 2013 - 06:25 AM.