> How to > Resource > How to Recover Deleted/Wiped Windows Operating System

How to Recover Deleted/Wiped Windows Operating System

Updated on Oct 18, 2018 by Jean to Resource


Operating system deleted or wiped by mistake, virus or other malware? EaseUS bootable data recovery software is helpful when you are trying to recover data from hard drive after accidentally deleted OS.

Deleted operating system

"I recently downloaded a virus onto my computer. While I was restoring it to the factory settings, it shut down. When I turn it back on, the screen was black and it read MISSING OPERATING SYSTEM. Is there any way of putting the operating system back on without purchasing it? I cannot access anything on the laptop."

It's really horrible to see your Windows operating system deleted by disgusting viruses. However, such a deleted OS issue happened frequently among Windows users, most of whom can hardly survive the accident. A computer without OS is useless, dead and bricked. What's worse, all data within is completely inaccessible!

How to Recover Data After Operating System Deleted

Have you ever expected a possibility to access hard drive without OS? It's not a joke at all. EaseUS WinPE bootable data recovery software is developed to recover data when Windows computer or hard drive won't boot. So, it perfectly solved your problem when OS was accidentally deleted or wiped by mistake, virus, malware, etc. Start immediately to recover data even without OS installed on PC.


First, please download and install EaseUS Data Recovery Wizard WinPE Edition on a working computer.

Then, create a WinPE bootable disk of EaseUS data recovery software, which will help you access your hard drive data without booting into Windows. 

1. Launch EaseUS bootable data recovery software on a working computer.

2. Select CD/DVD or USB drive and click "Proceed" to create a bootable disk. 

create a bootable disk with easeus

Details to recover data from crashed OS

Connect the WinPE bootable disk you have made to the PC with the corrupted Windows system, restart the computer and go to BIOS to change the boot sequence. Press F2 when you start your PC. It will allow you to run EaseUS data recovery software and recover data without Windows.

1) Select the disk where you want to recover data and click the "Scan" button.

select the disk

2) Let the software scan the selected disk to find all the files and folders.

scan the disk

3) Preview and choose the files you want, click "Recover" button to save them to a safe place. You'd better choose a different drive to avoid data overwriting.

recover data from the disk

How to Recover Deleted Operating System

To recover deleted operating system or reinstall a Windows operating system, if you prefer a do-it-yourself way instead of spending money hiring a professional, here's a detailed guide that helps you reinstall Windows after OS deletion. Take Windows 10 for example.

Step 1. On another PC, visit Microsoft's page to create Windows 10 installation media.

Step 2. Boot your computer of which the OS was deleted from the created bootable USB stick.

Step 3. Follow the prompts to set up Windows. As long as the previous version of the Windows operating system that was accidentally deleted is licensed, you'll be presented with the License terms. Accept it and click Next.

Step 4. Go on with Custom Install, after which you'll be asked to select a partition where you want to install Windows 10. Just select the partition and click Next.

custom install windows 10 in order to recover deleted operating system

Step 5. The installation process now starts. After it finished, the computer will restart. You should now recover deleted operating system successfully.