28,660 questions
Hello NavneetVerma
Thank you for your question and reaching out.
I can understand you are facing issue with Windows 7 Installation.
- Please check RAM modules and remove or Swap if there are multiple modules.
- Please format USB disk of Windows 7 installation and create bootable using Rufus tool.
- Please try reset BIOS to default values.
- Please remove any Additional devices connected on this desktop.
- Please try to Change disk drive on this PC as may be happed due to faulty Disk drive.
On the other note Windows 7 is out of support and legacy OS hence I will suggest you to upgrade with latest version of Windows .
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