A stubborn virus is affecting your computer, and traditional anti-virus software isn't working. To resolve this, you'll need to format the computer and reinstall the Windows operating system. This will essentially give your computer a "fresh start" and hopefully eliminate the virus.
"You're planning to format your C: drive on Windows 7 due to repair issues and start with a clean slate."
Formatting Windows 7 operating system involves formatting the C drive, where the OS is typically installed. This can resolve OS issues or remove persistent viruses.
If you try to format the Windows 7 C: drive like any other drive, you'll likely encounter an error message saying "You cannot format this volume" because Windows is installed on this drive. To format C drive, you'll need to boot from a Windows installation CD and format it during the installation process. We'll guide you through this step-by-step.
Warning: Formatting the C drive will erase all information within it, so if there are some files you want to keep, please back them up first via free backup software.
Step 1. Insert the Windows 7 installation CD into the computer and enter the BIOS settings to set the computer to boot from the CD.
Step 2. After the Windows 7 install files are loaded into memory, the "Starting Windows" screen will appear, and you should wait for it to finish.
Step 3. Select the desired language, time and currency format, and keyboard or input method on this screen, and click "Next".
Step 4. Click on the "Install now" button to start the Windows 7 clean install process, and then wait for the "Setup is starting" screen to finish.
Step 5. Read the Windows 7 Software License terms and click "Next" to confirm your operation.
Step 6. Here, choose "Custom (advanced)".
Step 7. In the "Where do you want to install Windows" window, you can see a list of all recognized partitions on your computer. By clicking "Drive options (advanced)", you'll be able to view additional drive options.
Step 8. Select C drive and click "Format" at the bottom.
You can click "Repair your computer" in step 4, select the operating system from the list and click "Next" to enter the "System Recovery Options" window, then open Command Prompt and format C drive using CMD.
If you don't have a CD for formatting Windows 7, you can create a bootable USB and use Qiling Disk Master Standard to format your C drive in Windows PE mode without a CD or DVD. This software is compatible with Windows 11/10/8/7/XP/Vista and allows you to format your C drive directly. You can download it for free and learn how to use it to format your C drive in Windows 7.
After logging in, you'll access the main interface of Qiling Disk Master. From there, follow the steps to format your Windows 7 hard drive without needing a CD.
Step 1. Right-click the C drive and choose "Format Partition".
Step 2. In the pop-out mini window, select a proper file system.
Step 3. Hit on "Apply" and "Proceed" to commit the pending operation.
If you don't have a Windows 7 CD, you can still format your laptop or desktop using a great alternative method.
If you want to format Windows 7 using a CD or USB drive, or format the C drive for a fresh installation, this article provides step-by-step methods. Alternatively, if you simply want to speed up your slowing computer, you can try using Qiling Disk Master Professional to migrate your OS to an SSD or extend your system drive.