Installing Windows 10 from a flash drive via BIOS on a Lenovo laptop: a complete guide 2026

Reinstalling the operating system on laptops Lenovo - a task that every user faces sooner or later. If you purchased a device with pre-installed Windows 11 and want to return to “ten”, or the system crashed after a virus attack, or you simply need a “clean” installation to improve performance - the algorithm of actions remains similar. However, it is the models Lenovo (especially the series IdeaPad, Legion And ThinkPad) have a number of nuances in the settings BIOS/UEFI, which can confuse an inexperienced user.

In this article we will walk through the installation process Windows 10 from a bootable USB flash drive to laptops Lenovo all generations, including current models 2023–2026. You will learn how to properly prepare a USB drive, what parameters BIOS needs to be changed (including for devices with Secure Boot And Fast Boot), how to avoid typical errors like “No bootable device” or getting stuck on the manufacturer’s logo. We will pay special attention disabling the function Intel Optane Memory (if present), since its active state blocks the installation of the system on some models.

1. Preparing a bootable USB flash drive for Lenovo

The first and most important step is creating a bootable USB drive. For laptops Lenovo it is critical to use a flash drive with a capacity at least 8 GB (even for “light” builds of Windows 10), formatted in FAT32. Otherwise BIOS may not recognize the device as bootable.

Download the official image Windows 10 (version 22H2 or later) from the Microsoft website via Media Creation Tool. An alternative is utilities like Rufus or Ventoy, which allow you to create a multiboot flash drive. For Lenovo it is important to choose a partition scheme GPT (not MBR), since most modern models use UEFI, not outdated Legacy BIOS.

• 📌 Rufus: select image, partition scheme GPT, target system UEFI. Check the box "Show extended driver properties" and install the version 1.0.3 for compatibility with Lenovo.
• 🔧 Media Creation Tool: Run the utility as an administrator, select "Create installation media for another computer" and follow the instructions.
• ⚡ Ventoy: Suitable for advanced users. Allows you to place several images on a flash drive, but requires manual configuration BIOS.

After recording the image be sure to remove the flash drive and connect it to your laptop Lenovo to the port USB 2.0 (usually black). Ports USB 3.0 (blue) may not be recognized during the boot phase, especially on older models in the series G500 or B590.

2. Entering BIOS on Lenovo laptops: all methods

To boot from a flash drive, you need to enter the menu BIOS/UEFI or call Boot Menu. U Lenovo There are three main ways to do this, depending on the model and year:

Laptop model	Key for BIOS	Key for Boot Menu	Features
ThinkPad (all episodes)	F1	F12	Some models require holding Fn
IdeaPad, Legion, Yoga (2018–2026)	F2 or Fn+F2	F12 or Fn+F12	On Legion 5/7 may need to be disabled Fast Boot on Windows
Lenovo V14, V15, budget series	Del	F12	Sometimes it only works after a complete shutdown (not a reboot)
Ultrabooks (Yoga Slim, IdeaPad 5)	Button Novo (next to the power connector)	F12 after holding Novo	You need to hold the button for 5-10 seconds when the laptop is turned off

If the keys do not work, try the following algorithm:

1. Turn off the laptop, disconnect the charger.
2. Hold the power button 20–30 seconds (discharges residual charge).
3. Connect the charger, turn on the laptop and immediately press the desired key (F2, F1 or Del) at intervals of 0.5 seconds.

3. Setting up BIOS to install Windows 10

After logging in BIOS/UEFI you need to change a few critical parameters. The interface may differ depending on the firmware version, but the key settings remain unchanged. Below is a universal algorithm for most models Lenovo:

Disable Secure Boot|Set boot mode to UEFI (not Legacy)|Disable Fast Boot|Activate USB support in Boot Menu|Disable Intel Optane Memory (if available)-->

Step by step instructions:

1. Disable Secure Boot:

   Go to section Security → Secure Boot and set the value Disabled. On some models (ThinkPad T14) you will need to reset the keys first (Reset to Setup Mode).

2. Select UEFI Boot Mode:

   In the section Boot find the parameter Boot Mode (or UEFI/Legacy Boot) and install UEFI Only. If there is no such item, check the setting CSM Support - she must be Disabled.

3. Disable Fast Boot:

   In the section Boot or Startup deactivate Fast Boot. This feature speeds up booting, but interferes with installing the system from a flash drive.

4. Set Upload Priority:

   In the section Boot move your flash drive to the first place in the list of devices (Boot Priority). On Lenovo this can be done by drag-and-drop or keystrokes F5/F6.

5. Check SATA settings:

   In the section Advanced → SATA Mode install AHCI (not RAID or Optane). This is critical for the correct operation of the disk after installation.

For models with Intel Optane Memory (For example, IdeaPad L340 or Legion Y540) an additional step is required:

⚠️ Attention: If in the section Advanced you see the item Intel Optane Memory or VMD Controller, turn it off (Disabled). Otherwise, Windows Installer will not see the hard drive and you will receive a "No drivers found for the media" error.

4. Windows 10 installation process: step by step with pictures

After saving the settings BIOS The laptop will reboot and boot from the flash drive will begin. Next follow the instructions:

Step 1: Select your language and region

On the first installer screen, select:

• Language: Russian
• Time format: Russian (Russia)
• Keyboard layout: Russian or English (USA)

Click Next, then Install.

Step 2: Enter your product key

If you have a license key, enter it. For most laptops Lenovo the key is tied to the motherboard (sewn into UEFI), so you can click I don't have a product key. Activation will occur automatically after connecting to the Internet.

Step 3: Select your Windows 10 version

Select edition Windows 10 Pro or Windows 10 Home (depending on your license). On Lenovo ThinkPad more often used Pro, on household models (IdeaPad) — Home.

Step 4. Disk partitioning

On the Select Installation Type screen, click Custom: Windows installation only. Next:

• If the drive is new, select Unallocated space and press Next — the system itself will create the necessary sections.
• If the disk has already been used, delete all partitions (button Delete) and create a new partition for the entire space (Create).

What to do if the installer does not see the disk?

If you see the message "We couldn't find any drivers" on the disk partitioning screen, it means that:

1. Not disabled in BIOS Intel Optane Memory (see section 3).

2. SATA mode is set to RAID instead of AHCI.

3. On laptops with AMD Ryzen (For example, Legion 5 15ARH05) driver may be required NVMe, which must be downloaded from the official website Lenovo and connect it to a flash drive in the folder $OEM$.

Step 5: Complete installation

After copying the files, the laptop will reboot several times. Do not remove the flash drive until the region setting screen appears. At this point, you can disconnect the USB drive.

5. Common mistakes and their solutions

Even if the instructions are followed exactly, users Lenovo encounter errors. Let's look at the most common ones:

Error	Reason	Solution
No bootable device after installation	Wrong boot order or enabled Secure Boot	Go back to BIOS, check boot priority (hard drive should be first). Disable Secure Boot.
Stuck on logo Lenovo	Conflict Fast Boot or Intel Optane	Disable Fast Boot in BIOS and repeat the installation. If there is Optane - deactivate it.
0xc000000f when loading	Damaged boot sector or incorrect mode UEFI/Legacy	Boot from the flash drive, select System Restore → Troubleshooting → Startup Repair.
SSD/NVMe drive is not visible	Driver missing or enabled RAID-mode	Download the driver from the site Lenovo (section "Support") and load it at the disk selection stage (button Loading).

The error deserves special attention 0xc0000225, which often occurs on Lenovo Legion with two disks (SSD + HDD). In this case:

⚠️ Attention: If you see a blue screen with a code 0xc0000225, this means that the Windows boot loader is installed on the wrong drive. Solution:

1. Boot from the flash drive, click Shift+F10 (a command prompt will open).
2. Enter the commands:

   diskpart
   list disk
   select disk 0 (где 0 — ваш SSD)
   list partition
   select partition 1 (раздел с загрузчиком, обычно 100–500 МБ)
   active
   exit

3. Reboot.

6. Optimizing Windows 10 after installation on Lenovo

After successful installation of the system, it is recommended to perform several steps for stable operation:

• 🔄 Update your drivers:

  Download the driver package from the official website Lenovo (section Support) or use the utility Lenovo Vantage. Drivers are especially important for chipset, network card And discrete graphics (on Legion).

• ⚡ Set up your power supply:

  For gaming laptops (Legion, Y7000) select a scheme High performance. On ultrabooks (Yoga, IdeaPad S540) activate the mode Better performance in the system parameters.

• 🛡️ Activate protection:

  Turn on BitLocker (for Windows 10 Pro) or install an antivirus (for example, Kaspersky or Bitdefender). On ThinkPad further configure Fingerprint Reader in Lenovo Settings.

• 🗑️ Remove bloodware:

  Lenovo often preinstalls unnecessary programs (McAfee Trial, Lenovo App Explorer). Remove them via Settings → Applications or utility Bulk Crap Uninstaller.

7. Frequently asked questions (FAQ)

Can I install Windows 10 on a Lenovo laptop with Windows 11 pre-installed?

Yes, but there are nuances:

• On models with TPM 2.0 (For example, IdeaPad 5 Pro) will need to be disabled Secure Boot and turn on Legacy Support (if available).
• Laptops with processors Intel 12th generation and newer may not have official drivers for Windows 10 on the website Lenovo - you will have to search for them manually.

Before installation, check the compatibility of your model on the Microsoft website in the "List of supported devices for Windows 10" section.

Why does the touchpad not work after installing Windows 10 on Lenovo?

This is a typical problem for laptops IdeaPad And Legion. Solution:

1. Download the touchpad driver from official website (Section "Mouse and Keyboard").
2. If the driver does not install, check whether the touchpad is enabled in the BIOS (Advanced → Internal Pointing Device - must be Enabled).
3. On models with Synaptics touchpad may need to roll back the driver via Device Manager.

How do I reset the BIOS to factory settings on Lenovo if I configured something wrong?

There are three ways:

1. Reset via BIOS: go to settings, find the item Load Default Settings (or Restore Defaults) and save changes (F10).
2. Hard reset: Turn off the laptop, disconnect the battery (if removable) and hold the power button for 30 seconds. For non-removable batteries, use tweezers to short the contacts CMOS (see diagram in user manual).
3. Novo button: on some models (ThinkPad, Yoga) holding the button Novo 10 seconds resets the BIOS.

After resetting, all settings, including boot priority, will return to factory settings.

Do I need to update my BIOS before installing Windows 10?

Updating the BIOS is recommended if:

• Your model Lenovo released after 2020 (updates often add support for new processors and fix boot errors).
• You encounter errors like 0xc0000098 or INACCESSIBLE_BOOT_DEVICE.
• On the website Lenovo There is a "Recommended" mark for your BIOS version.

However don't update BIOS, if:

• The laptop works stably and you do not experience any hardware problems.
• The update was released less than a month ago (there may be bugs).

To update, use the official utility Lenovo System Update or firmware file with extension .exe, launched from Windows.

Is it possible to install Windows 10 on Lenovo without a flash drive?

Yes, there are three alternative ways:

1. Via Lenovo OneKey Recovery (available on some models IdeaPad And ThinkPad). Press and hold the button Novo with the laptop turned off and select System Recovery.
2. Over the network (PXE): enable in BIOS Network Boot and boot from the server (special infrastructure required).
3. From external HDD: Create a boot partition on your external hard drive using Rufus (similar to a flash drive).

However A flash drive remains the most reliable and universal method, especially for laptops without a DVD drive.