1. Open Internet Explorer 7. Click the 'Tools' menu item and then click 'Internet Options' to open your IE settings window.
2. Click the 'Advanced' tab in the Properties window. In the 'Security' section, click the checkbox labeled 'Warn about certificate address mismatch' to remove the checkmark.

3. Click 'OK' to save your settings. You will no longer receive warning messages about invalid SSL certificates.

1. Click the 'Start' button. Click the arrow next to 'Shut Down' and click on 'Restart.'
2. Tap the 'F8' key repeatedly as the computer boots up, but before Windows loads, to display the 'Advanced Boot Options' menu.

3. Navigate with your keyboard arrows to highlight the 'Safe Mode with Command Prompt' option and press 'Enter.'
4. Type the following text into the command prompt exactly as displayed and press 'Enter.' The double-quotation marks are part of the command. 'C' is the letter assigned to your hard drive.copy 'C:\WINDOWS\ServicePackFiles\i386\ndis.sys' 'C:\WINDOWS\system32\drivers\ndis.sys'
5. Press 'Alt,' Ctrl' and 'Delete' simultaneously on your keyboard. Click the arrow on the lower right-hand corner of the screen that opens and select 'Restart.' Allow your computer to boot into Windows as normal.

1. Ensure that your Internet connection cables are secure. The GameGuard error occurs when the software cannot download needed updates. Unconnected Internet connection cables could be the cause. If it is not, proceed to the next step.
2. Click the Windows 'Start' button, the 'Control Panel' option, then the 'System and Security' option.

3. Open 'Windows Firewall.' If a threat is detected, the firewall prevents the program from accessing the Internet, but sometimes the firewall blocks programs that are not threatening, such as GameGuard. Disable the firewall by clicking 'Turn Windows Firewall on or off' and selecting 'Turn off Windows Firewall' under both the public and private network headings. Click the 'OK' button to save recent changes.
4. Allow GameGuard to update, then return to the Windows Firewall menu and enable the firewall again. The error 380 should now be eliminated.

1. Click 'Start,' then click 'Run.'
2. Type 'new network path\Setup.exe /fvm package name.msi' and click 'OK.' Replace 'New Network Path' and 'Package Name' with the actual new network path and package name.

3. Click 'OK' once the update finishes. The Windows installer will now use the newly created server location when it needs to repair, reinstall or add a feature to Office.

1. Click the 'Start' button in the Windows and select the 'Control Panel' option.
2. Click on the 'Performance and Maintenance' icon in the 'Control Panel' window.

3. Click on the 'System' icon to open the 'System Properties' window.
4. Click the 'Settings' button in the 'Performance' text box under the 'Advanced' tab.
5. Click on the 'Data Execution Prevention' tab in the 'Performance Options' window.
6. Select the 'Turn on DEP for all programs and services except for those I select' radio button and click the 'Add' button.
7. Locate and click on the 'ctfmon.exe' file in the 'C:\WINDOWS\system32' directory.
8. Click the 'OK' button to add the CTF loader to the DEP exclusion list.
9. Click the 'OK' button on all open dialog boxes to fix the CTF loader error message problem.

Disable Add-ons
1. Open Up Internet Explorer.
2. Go to 'Tools', and click 'Internet Options'.

3. Select 'Programs', come down to 'Manage Add-ons' and click 'Manage add-ons' button. The 'Manage Add-ons' screen opens.
4. Look in the list of add-ons, look for anything suspicious or consider disabling non-Microsoft items in the list. Select (highlight) the add-on, and click 'Disable'.
5. Click 'Close'.
Run a Virus Scan
6. Restart your computer, on start up, hold down the 'F8' key on your keyboard.
7. Select 'Safe Mode', log on to windows, click 'OK', to proceed into safe mode.
8. Run your anti-spy-ware software.
9. Run your anti-virus software.
Reinstall Internet Explorer
10. Open Control Panel.
11. Go to 'Programs and Features', Or 'Add Or Remove Programs'.
12. Go down the list to your internet explorer install, select to uninstall it. Internet Explorer will revert back to its previous version. You can then perform an update to reload the current version.
13. Restart the computer. Then click 'Start', then 'Windows Update' this will update Internet Explorer to the latest version.

1. Press the 'Start' button located in the left-hand corner of your desktop screen. Select 'Run' if you are using Windows XP, 'Search' for Windows Vista and 'Search Programs and Files' for Windows 7.
2. Type in 'certmgr.msc' in the pop-up box that appears. Wait for a list to generate. Click on 'Untrusted Certificates' and double-click on 'Certificates.' Highlight each certificate you wish to remove, right-click on each certificate then select 'Delete.' Note that a pop-up box will appear to confirm that you really want to delete. Press 'Yes' when prompted. Note that you may also access your security certificates in Internet Explorer by selecting 'Tools,' 'Internet Options,' 'Content,' 'Certificates' then 'Untrusted Publishers.' Highlight and delete each certificate you wish remove.

3. Open your Firefox browser. Click on 'Tools,' 'Advanced,' 'Encryptions' and 'View Certificates.' Click on the 'Your Certificates' tab. Select which certificates you wish to remove then press 'Delete.'
4. Open your Google Chrome browser, select 'Tools,' 'Options,' 'Under the Hood' then 'Security.' Select the 'Manage Certificates' tab. Choose 'Untrusted Publishers.' Click on each certificate that you wish to delete then press 'Remove.' Note that a pop-up box will appear to confirm that you really want to remove the certificate. Press 'Yes' for each certificate.

1. Click the Windows 'Start' button and click 'All Programs.' Scroll up and select 'Accessories.' Click 'System Tools' and click 'Task Scheduler.'
2. Open the 'Asus' folder and right-click 'ASUS ACPI Service Provider.' Click 'Disable.' Right-click 'ASUS RegRun Loader' and click 'Disable.' This prevents this program from running at start-up. Move to the next step as an alternative to disabling this program.

3. Click the Windows 'Start' button and click 'Run' or 'Start Search' (in Windows Vista). Type %programfiles% and press 'Enter' to open the Program Files window.
4. Double-click 'ASUS' and double-click 'AASP.' Double-click the '1.00.32' folder and locate Aacenter.exe.
5. Right-click 'Aacenter.exe' and click 'Rename.' Rename it 'Aacenter.xxx' (without quotes). This will disable it and fix the error.

1. Connect your computer to the Internet.
2. Click 'Start' and then click 'Run' if you have the Windows XP operating system. For other systems, simply open Internet Explorer and click 'Safety,' then click 'Windows Update.'

3. Type 'wupdmgr' in the 'Run' dialog box to run Microsoft Update.
4. Click 'Express' to find out if your computer requires new updates.
5. Press 'Install Updates' if any are available. Otherwise, close the Microsoft Update window.
6. Update your anti-virus program and then immediately scan all of the files on your computer.
7. Open the software program that gave the .dll notice to see if error messages still occur. If so, continue to the next step.
8. Reinstall the affected software program to replace the damaged or missing .DLL file. If the issue is still not resolved, contact Microsoft Support.

1. Click 'Start.' Type 'Event Viewer' in the search box at the bottom of the 'Start' menu. Press 'Enter.'
2. Click on 'Windows Logs' in the left pane. Click on a subcategory, such as 'Application.' The logs display in the center-right pane, in the top section.

3. Click on the 'Level' heading. Wait for Event Viewer to sort the logs.
4. Scroll to find the beginning of logs labeled 'Error' under the 'Level' heading. Click to highlight an error.
5. Double-click on 'Event Log Online Help' on the 'General' tab at the center-bottom of the window. Wait for a web page to open in the Internet browser labeled 'TechNet Events and Errors Message Center.'
6. Follow the instructions on the web page under the 'Resolve' section to correct the error that appeared in the Event Viewer log.

1. Restart the computer. This may clear any internal software issues, caused by a faulty memory cache in the computer's hardware. Click the 'Start' menu in the lower left-hand corner. Select 'Restart.'
2. Log in as an administrator on the computer where you wish to install the iTunes software. Administrator privileges are required to install iTunes on Windows. The administrator account is always listed first on the Windows log-in screen. If you are not the administrator or owner of the computer, contact the individual who is and ask if she will sign in for you.

3. Ensure you have the most recent Windows updates downloaded and installed from the Microsoft Update website (see link in Resources). Microsoft regularly releases software patches and updates that may resolve issues you may encounter when attempting to install software such as iTunes.
4. Completely uninstall previous version of iTunes if you have have ever previously operated iTunes on your computer. If this is your first time installing iTunes, go to Step 5. Click the Start menu and select 'Control Panel.' Click 'Add or Remove Programs' (Windows XP) or 'Uninstall A Program' (Windows Vista). Click the 'iTunes' program in the dialog window that appears. Restart your computer after you have uninstalled previous version of iTunes.
5. Clean up the iTunes Windows Installer Package. Launch Internet Explorer and visit the Microsoft Windows Installer Clean-Up Utility webpage (see link in Resources). This program will clean up system files that can create software conflicts with the iTunes Windows Installer Package. Click the link that reads 'Download the Windows Installer Cleanup Utility package now,' next to the download icon. Double-click the utility icon after you've downloaded it from the Microsoft website. Follow the on-screen instructions to complete the automated software installation. Click 'Start' and select 'All Programs.' Click 'Windows Install Cleanup.' Select 'iTunes' in the utility's screen. Click 'Remove.' Click 'Exit' after the utility has finished cleaning up the installer package. Restart your computer.

1. Locate the driver for the device that is generating the code 28 error message in the Device Manager. You can do this by locating the disk that came with the hardware that contains the driver or by visiting the manufacturer's website and downloading the driver.
2. Open the Device Manager on your computer by clicking on 'Start,' opening 'Control Panel,' clicking 'Administrative Tools' and selecting 'Device Manager.'

3. Right-click on the device that is generating the code 28 error message and select 'Properties.' Select the 'Driver' tab and click on the 'Update Driver' button. This will start the Hardware Update Wizard, which will ask you to select whether you want to install the driver manually or automatically. Choose the manual installation option, and then select the path to the driver that you downloaded or which is on the driver disk.
4. Restart your computer once the driver has been properly installed to ensure that the device is working properly and no longer generating a code 28 error.

1. Start your Mac in Safe Mode. Shut down your computer completely, then press the power button to start it up again. Immediately after hearing the startup chime, press and hold the 'Shift' key. Hold the key down until you see the gray screen with the Apple logo and spinning icon. Starting up in Safe Mode does a number of things, such as dumping program cache files and resetting them, performing a diagnostic and repairing errors and forces a directory check of the startup volume.
2. Restart your computer normally, without pressing any keys to see if the issues have been resolved. If you are able to log in, do so, and use your computer normally to see if you experience any issues. If there are still issues you may need to use the Disk Utility application with your Mac installation disc.

3. Insert your Mac installation disc, then shut down your computer. Press the power button to start the computer again, then when the startup chime sounds, hold down the 'C' key until the gray screen with the Apple logo and spinning icon appear. You should notice your CD drive becoming active, as it will be loading the data from the CD instead of your hard drive.
4. Select the main language of your choice, then click the arrow to proceed to the next step. This will not reset your system or wipe any files. Wait for the menu bar to appear at the top of the screen. If you are using Mac OS X 10.2.x through 10.3.x, click 'Installer,' then click 'Open Disk Utility.' In Mac OS X 10.4.x through 10.5.x, click 'Utilities,' then 'Disk Utility.'
5. Click 'Macintosh HD' on the sidebar once it has loaded, then under the 'First Aid' tab on the lower right, click 'Repair Disk.' This process may take a few minutes, but it will locate any errors on your disk and repair them. If there are no errors, you will see 'The volume Macintosh HD appears to be OK.' If you see this--and even if you don't--check for additional errors by clicking 'Repair Disc Permissions.'

Accessing Through BIOS
1. Turn your computer on and look for the BIOS instructions on the screen. The BIOS instructions will come on before the Windows logo appears.
2. Follow the BIOS instructions. This will tell you to 'Press F9 to Enter BIOS,' or something similar to this.

3. Use the arrow keys to scroll down to the 'System Log' entry, and then press the 'Enter' button.
Accessing Through The Operating System
4. Click the 'Start' button, and then click on the 'Control Panel' icon.
5. Click on the 'System' icon, and then click the 'Administration' icon.
6. Click on the 'Log File Viewer' icon to open the log file.

1. Visit the program publisher's website and download the latest patches for the game. Run and install the patches to see if this will rectify the error. If not, proceed to the next step.
2. Press the 'Ctrl,' 'Alt' and 'Delete' buttons on your keyboard at the same time to open the Windows Task Manager prompt.

3. Click the 'Processes' tab and locate any nonessential process that is running and using a lot of system memory. You can see the process description in the Description column. Right-click the process and select 'End Process' to shut it down.
4. Clean out the Windows Temp folder, which is located in your Windows installation folder. This will erase leftover files from older programs that may be the cause of the conflict with your program.
5. Ensure that you enough space available on your computer's hard drive. Errors can occur if the hard drive has less than 200 MB free. If this is the case, you may need to delete programs and files on your hard drive to free up space or upgrade the system's memory.
6. Remove Aureal A3D drivers if they are installed on your computer. These drivers can cause the general protection fault errors in various game programs.
7. Reinstall your Windows system as a final resort by doing an install from your Windows installation disc. The GPF error can be caused by a corrupted Windows system, so reinstalling Windows will fix the problem.

1. Insert the 'Windows XP Installation' CD into your CD-Rom drive and restart your computer. Windows XP Installation is a bootable CD and thus the CD should run automatically. However, if prompted, press any key to 'Boot from CD.'
2. Press 'R' when the 'Welcome to Setup Screen' appears.

3. Press the number that appears next to 'Windows XP' (generally this will be 1).
4. Type your administrator password and press 'Enter.' The Recovery Console screen appears.
5. Type the following commands into the Recovery Console screen. Press 'Enter' after each command.cd system32ren msvcrt.dll msvcrt.oldF:cd \i386expand msvcrt.dl_ C:\windows\system32exit
6. Restart your computer when prompted.