If you have a Windows 10 PC/Laptop, and for some reason, the OS is nor working the way it’s supposed to, the most common solution is to repair the OS. Usually, you get an OS Repair Disk when you purchase a Windows 10 OS, but if you have misplaced it, do not worry. In this tutorial, we will take a look at how you can repair Windows 10 without the CD.
Let’s get Started –
Method 1 – Using Startup Repair on Windows 10
If your OS is glitching but you are able to boot your computer, you can try to repair the OS using the built-in Startup Repair utility.
Step 1. The first step here is to go to the Advanced Startup Environment. To do this, Power on your Windows 10 PC, and when the Windows logo appears, long-press the power button again to perform a Forced ShutDown. Now, the trick here is to perform a forced shut down two to three times. Eventually, when you power on your PC after several forced shutdowns, you will be greeted by a Recovery Screen.
Step 2. On the Recovery screen, scroll to the Advanced Options and press Enter on your Keyboard.
Step 3. Select the Troubleshoot option, followed by Advanced Options, and finally select the Startup Repair option. 
Wait for a few minutes for the issues to be resolved. Your PC will reboot once the process is completed.
Method 2 – Use a Bootable USB to launch Startup Repair
If your OS has glaring problems and is malfunctioning critically, the only solution for you is to perform a fresh installation of Windows 10. To do this, you have to first create a bootable USB or a disk with the Windows 10 ISO loaded into it. If you are unable to create the Bootable USB or disk on your PC, you can always borrow your friend’s Windows 10 device to create the same. Rest assured, their PC will not be harmed in any way.
Step 1 – The first step is to download the Media Creation Tool provided by Microsoft themselves. Click here to download the Microsoft Media Creation tool.
Step 2 – Once you install the tool, run it, and in the window that appears, select the Create installation media for another PC option.
Step 3 – Next, select the language of your choice, the edition of the OS as well as the architecture of your PC/Laptop (32 Bit or 64 Bit).
Step 4 – You will now be asked what kind of media you will be using. Here, select the USB Flash Drive option.
Step 5 – Press the Next button and after a few minutes, your Bootable USB containing the right version of Windows 10 will be ready for use.
Once you create the Bootable USB
1. First, Boot up your PC, but this time, ensure that the boot does not go all the way. We want to enter the BIOS.
2. Make sure that the bootable media is inserted into the PC before you boot it.
3. Load the BIOS by pressing the BIOS key on booting up. This is usually the ESC key, Delete key or the F2 key on your keyboard.
4. In the menu, select the Removable Devices Option.
5. Now, change the boot list in such a way that the PC starts up the Bootable USB when you Power it on.
6. Now Reboot your Device and the Bootable USB should startup.
7. Click Repair your computer option.
8. Click Troubleshoot > Advanced options > Startup Repair.
Method 3 – Perform a System Restore
If you have created a Restore Point before, you can try to repair your Windows 10 OS by reverting it back to the last saved restore point.
- Open Start.
- Search for Create a restore point, and click the top result to open the System Properties experience.
- Click the System Restore button.
- Click the Next button.
- Select the restore point that you want to use on your computer.
- Click the Scan for affected programs button to understand the apps that will no longer be available because they’re added after the creation of the restore point.
- Click the Close button.
- Click the Next button.
- Click the Finish button.
Once you complete the steps, System Restore will return your computer to the previous working state.
Using these methods, you can successfully repair your copy of Windows 10.
