# Recovering a boot partition

### The first thing you need to do is insert a bootable USB flash drive with Windows installation files formatted in FAT32.

{% hint style="info" %}
You can create them from another device.
{% endhint %}

<div align="left"><figure><img src="https://content.gitbook.com/content/bZ0T9ostm1Sa5NqjthA2/blobs/kc6bJbRGEew11vXUD3QC/Group%205248.png" alt=""><figcaption><p>The interface may vary.</p></figcaption></figure></div>

### Next, you need to enter the BIOS and boot by selecting this USB flash drive as the boot device.

<div align="left"><figure><img src="https://content.gitbook.com/content/bZ0T9ostm1Sa5NqjthA2/blobs/yEflwFmu9RxY8vYkZ9Xi/Frame%2033669%202.png" alt=""><figcaption><p>The interface may vary.</p></figcaption></figure></div>

### After booting from the USB flash drive, you will see the "Windows Setup" window.

<div align="left"><figure><img src="https://content.gitbook.com/content/bZ0T9ostm1Sa5NqjthA2/blobs/hk7FdkBjRCTZbjisLHGA/Frame%205285%202.png" alt=""><figcaption><p>The interface may vary.</p></figcaption></figure></div>

{% hint style="danger" %}
You don’t need to press anything, as we don’t need to go through the Windows installation process!
{% endhint %}

### We need to open the Command Prompt and execute the commands.

On the Windows setup screen, press **`SHIFT + F10`**.

The Command Prompt window will open.\
\
**In the Command Prompt, type:**

```
diskpart
```

{% hint style="info" %}
This will open the utility for managing disks and partitions.
{% endhint %}

**Next, type:**

```
list vol
```

{% hint style="info" %}

* A list of all volumes on the disk will appear.
* Find the boot EFI partition:
  * **Size:** approximately 100 MB
  * **File system:** FAT32
  * **Label:** SYSTEM, EFI, or it may have no name
  * **Note:** it usually does not have a drive letter.
    {% endhint %}

**Next, type:**

```
sel vol "5"
```

{% hint style="info" %}

* Replace `5` with the number of the volume that corresponds to your EFI partition.
* After this, all subsequent commands will be executed on this partition.
  {% endhint %}

**Next, type:**

```
format fs=fat32 quick
```

{% hint style="info" %}
A quick format of the selected volume is performed in the FAT32 file system, clearing its contents.
{% endhint %}

**Next, type:**

```
assign letter=Z
```

{% hint style="info" %}
The selected partition is assigned a temporary drive letter `Z:`, allowing it to be accessed from the Command Prompt.
{% endhint %}

**Next, type:**

```
exit
```

{% hint style="info" %}
We exit DiskPart and return to the Command Prompt.
{% endhint %}

**Next, type:**

```
bcdboot C:\Windows /s Z: /f all
```

{% hint style="info" %}

* `C:\Windows` — the path to your installed Windows (if the system drive has a different letter, replace it with the correct one).
* `/s Z:` — the partition where the boot files (EFI) will be copied.
* `/f all` — creates a bootloader for both UEFI and BIOS.
  {% endhint %}

{% hint style="success" %}
After executing the command, you should see the message:

```
Boot files successfully created.
```

{% endhint %}

\
Here’s an example of how it should look!

<figure><img src="https://4110510387-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FbZ0T9ostm1Sa5NqjthA2%2Fuploads%2F33xBEpiGs61WocLwBSD0%2FFrame%2033674.png?alt=media&#x26;token=0bf794b8-26d9-4916-b65e-e2f9f860bbf7" alt=""><figcaption></figcaption></figure>

If all steps were completed correctly, turn off the computer, remove the USB flash drive, and turn it on again.

{% hint style="success" %}
Done! We have successfully restored the Windows bootpart
{% endhint %}