How To Fix Windows Boot Manager Fail – 0xc000035a Error

Updated July 2024: Stop getting error messages and slow down your system with our optimization tool. Get it now at this link
  1. Download and install the repair tool here.
  2. Let it scan your computer.
  3. The tool will then repair your computer.

Error state 0xc000035a, tries to load a 64-bit application, but this CPU is not compatible with 64-bit mode. This error can occur with visualization products such as VMware Product or a virtual product when installing a 64-bit application. There’s nothing to worry about about. It all depends on your hardware configuration. See the figure below for a true picture of the problem.

If you are sure that your computer’s processor supports the virtualization function, simply enable it in your computer’s BIOS. You can enter the BIOS during the Power-On Self-Test (POST) when you start/restart your computer and there are different keys based on Dell, HP, Lenovo, Acer, IBM etc.

  • For Dell, press F2.
  • For Acer, press F2.
  • For HP Press F10

You must enable VT-x/AMD-V and possibly nested pagination in your virtual machine configuration.

In my version of VirtualBox, this can be done through:

July 2024 Update:

You can now prevent PC problems by using this tool, such as protecting you against file loss and malware. Additionally it is a great way to optimize your computer for maximum performance. The program fixes common errors that might occur on Windows systems with ease - no need for hours of troubleshooting when you have the perfect solution at your fingertips:

  • Step 1 : Download PC Repair & Optimizer Tool (Windows 10, 8, 7, XP, Vista – Microsoft Gold Certified).
  • Step 2 : Click “Start Scan” to find Windows registry issues that could be causing PC problems.
  • Step 3 : Click “Repair All” to fix all issues.


  1. Closing the VM
  2. Right-click on the virtual machine.
  3. Go to the System section.
  4. Click on the Acceleration tab.
  5. Activate “Activate VT-x/AMD-V” and “Nested Paging”.
  6. Click on “OK” below to save your settings.

After activating it in VirtualBox, you should now be able to start Windows Server 2008 if your operating system and CPU configuration are correct.

Check the BIOS

Disable USB ports in BIOS

Open Bios and make sure that vt-x is enabled.
If this was not the case, you must delete the VM in the virtual box and create a new one……… You now see an option for Windows 7 and Windows 7 (64-bit).

After deleting and rebuilding the VM, you can browse it. Changing the parameters of the existing VM did not seem to meet the desired objective.

Formatting the hard disk drive

Your computer’s hard drive stores important files, programs and data that your business cannot do without.

Reformatting and recovery

1. Insert the Windows system repair disk into the computer’s floppy disk drive. Restart the computer.

2. press any key at the prompt. Click Next to open the Install Windows page. Select your language and other settings, then click on Next.

3. click on “I accept the terms of the license”, then on “Next”.

4. click on Custom Options and Player Options (Advanced). Click on the hard disk you want to format, then click Format. The formatting time depends on the size of the hard disk. When the process is complete, Windows stops the installation on your computer.

Expert Tip: This repair tool scans the repositories and replaces corrupt or missing files if none of these methods have worked. It works well in most cases where the problem is due to system corruption. This tool will also optimize your system to maximize performance. It can be downloaded by Clicking Here