It seems like you are encountering a screen glitch and facing challenges when reinstalling Windows 8 after reinstalling Windows 7. Here are some steps you can take to address these issues and perform a clean and correct installation of Windows 8:
### Steps to Address the Screen Glitch Issue:
1.
Update Graphics Drivers: Ensure that your graphics drivers are up to date. Outdated or incompatible graphics drivers can sometimes cause display glitches.
2.
Check for Windows Updates: Install any pending Windows updates as these updates often contain patches and fixes for various system issues.
3.
Run System File Checker (SFC): Use the System File Checker tool to scan and repair corrupted system files that may be contributing to the screen glitch.
### Steps for a Correct Windows 8 Installation:
1.
Prepare Bootable Media: Create a bootable USB drive or DVD with the Windows 8 installation files.
2.
Access BIOS Settings:
- Restart your computer and enter the BIOS setup by pressing the relevant key during startup (usually Del, F2, or F12).
- Check if your boot mode is set to UEFI or Legacy BIOS. For Windows 8, it's recommended to use UEFI mode.
3.
Partition Management:
- During the installation process, you can delete existing partitions, create new ones, and format them as needed.
- If you encounter the MBR partition table error, convert the disk to GPT format. You can do this by cleaning the disk using DiskPart before installation.
4.
Clean Installation Steps:
- Boot from the Windows 8 installation media.
- Follow the on-screen prompts, select the custom installation option, and choose the partition where you want to install Windows 8.
- Complete the installation process by following the instructions provided.
5.
Finalize Installation:
- Once Windows 8 is installed, make sure to install drivers, update Windows, and configure your system settings.
### Dealing with EFI and Recovery Partitions:
- EFI System Partition (ESP) is essential for UEFI boot mode. If you see EFI and recovery partitions in Disk Management, they are likely there to support your system's UEFI configuration.
- Do not delete these partitions unless you are absolutely certain they are unnecessary, as they contain crucial system files.
By following these steps, you should be able to address the screen glitch issue and perform a clean installation of Windows 8 correctly. If you encounter any specific errors or difficulties during the installation process, feel free to provide more details for further assistance.