Lenovo IdeaPad 100-15IBY Drivers: Windows 7, 8.1 & 10 (64-bit)
This page collects the essential Lenovo IdeaPad 100-15IBY drivers for 64-bit Windows 7, Windows 8.1 and Windows 10: chipset, graphics, audio, LAN, Wi-Fi, Bluetooth and touchpad (plus USB 3.0 for Windows 7). Every link points to Lenovo's own download server, so you always get the original, unmodified installer.
Below you will also find how to check which Windows version you have, the best order to install the drivers, and fixes for the problems people most often run into after reinstalling Windows on this laptop.
Lenovo IdeaPad 100-15IBY at a glance
Knowing what is inside the laptop makes it easier to pick the right driver and to recognise unknown devices in Device Manager.
| Platform | Intel Bay Trail-M (Celeron / Pentium), for example Pentium N3540 |
|---|---|
| Graphics | Intel HD Graphics (Bay Trail) |
| Display | 15.6-inch, 1366 × 768 |
| Wi-Fi & Bluetooth | Realtek RTL8723BE combo card (802.11n, Bluetooth 4.0) |
| Ethernet | Realtek 10/100 Fast Ethernet |
| Audio | Realtek ALC235 |
| Ports | 1 × USB 3.0, 1 × USB 2.0, HDMI, 4-in-1 card reader |
Step 1: Check your Windows version
Choose the section that matches both your Windows version and a 64-bit system type. Lenovo publishes only 64-bit packages for this model, and a driver built for another Windows version will usually refuse to install.
- Press
Windows + R, typemsinfo32and press Enter. - Look at OS Name (Windows 7, 8.1 or 10) and System Type. It must read x64-based PC.
Step 2: Download the drivers
Jump straight to your version:
Lenovo IdeaPad 100-15IBY drivers for Windows 7 (64-bit)
| Driver | Version | Download |
|---|---|---|
| ChipsetIntel Chipset Driver | 9.4.4.1006 | Download7jna01wf.exe |
| USB 3.0USB 3.0 Driver | 3.0.0.33 | Download7jn001wf.exe |
| GraphicsIntel VGA Driver | 10.18.10.3958 | Download7jn201wf.exe |
| AudioRealtek Audio Driver | 6.0.1.7459 | Download7jn301wf.exe |
| LAN (Ethernet)LAN Driver | 7.92.115.2015 | Download7jnb01wf.exe |
| Wi-FiRealtek WLAN Driver | 2023.15.701.2015 | Download9nb501wf.exe |
| BluetoothBluetooth Driver | 1.3.858.1 | Download7jn601wf.exe |
| TouchpadTouchpad Driver | 18.1.26.18 | Download7jn701wf.exe |
Windows 7 tip: Windows 7 has no built-in USB 3.0 support. During setup, plug your mouse and keyboard into the USB 2.0 port, then install the chipset and USB 3.0 drivers first so the USB 3.0 port works too.
Lenovo IdeaPad 100-15IBY drivers for Windows 8.1 (64-bit)
| Driver | Version | Download |
|---|---|---|
| ChipsetIntel Chipset Driver | 9.4.4.1006 | Download7jn2019f.exe |
| GraphicsIntel VGA Driver | 10.18.10.3958 | Download7jn7019f.exe |
| AudioRealtek Audio Driver | 6.0.1.7459 | Download7jn9019f.exe |
| LAN (Ethernet)Realtek LAN Driver | 8.036.0826.2014 | Download7jn8019f.exe |
| Wi-FiRealtek WLAN Driver | 2023.34.430.2016 | Download7jna04af.exe |
| BluetoothBluetooth Driver | 1.3.857.3 | Download7jnd019f.exe |
| TouchpadTouchpad Driver | 18.1.26.18 | Download7jna019f.exe |
Upgraded to Windows 10? Use the Windows 10 packages below, not these, even if the laptop originally shipped with Windows 8.1.
Lenovo IdeaPad 100-15IBY drivers for Windows 10 (64-bit)
| Driver | Version | Download |
|---|---|---|
| ChipsetIntel Chipset Driver | 10.1.1.8 | Download7jn801af.exe |
| GraphicsIntel VGA Driver | 10.18.10.4653 | Download7jn006af.exe |
| AudioRealtek Audio Driver | 6.0.1.7514 | Download7jn301af.exe |
| LAN (Ethernet)Realtek LAN Driver | 10.1.505.2015 | Download7jn103af.exe |
| Wi-FiRealtek WLAN Driver | 2023.34.430.2016 | Download7jna04af.exe |
| BluetoothRealtek Bluetooth Driver | 1.3.876.3 | Download7jn903af.exe |
| TouchpadTouchpad Driver (Synaptics / Sentelic) | 19.0.17.104 | Download7jn005af.exe |
Windows 10 tip: Windows Update often installs generic drivers on its own. The Lenovo packages are still worth installing for the graphics driver (correct resolution and acceleration), the Wi-Fi/Bluetooth card and the touchpad.
Drivers not listed on this page
To keep this page focused, it lists only the drivers needed to get the laptop fully working. The BIOS update, camera, card reader and brightness packages are left out; if you need them, search for 100-15IBY on Lenovo Support.
Recommended installation order
Installing in the right order avoids most conflicts. Restart whenever an installer asks you to.
- Chipset: other drivers rely on it. On Windows 7, install USB 3.0 right after.
- Graphics: restores the native 1366 × 768 resolution and smooth video.
- LAN and Wi-Fi: gets you online for Windows updates.
- Audio.
- Bluetooth.
- Touchpad: enables scrolling and gestures.
Fixing common problems
| Problem | What to try |
|---|---|
| No Wi-Fi after a clean install | Download the Wi-Fi driver on another device and copy it over on a USB stick, or share your phone's connection over USB tethering. Install the LAN driver first if you can use a cable. |
| Screen looks stretched or stuck at a low resolution | Install the Intel graphics (VGA) driver, restart, then set 1366 × 768 in display settings. |
| No sound | Install the Realtek audio driver, then right-click the speaker icon and make sure the speakers are the default playback device. |
| Bluetooth missing | Wi-Fi and Bluetooth share one combo card, so install the Wi-Fi driver as well and check that airplane mode is off. |
| Touchpad does not scroll or tap | Install the touchpad driver, then review the touchpad options in Windows settings. |
| Installer says the system is not supported | You are probably using a package for a different Windows version or a 32-bit system. Re-check Step 1. |
| Yellow warning icon in Device Manager | Right-click the device, choose Properties, open Details and select Hardware Ids. The vendor/device code tells you which driver the device needs. |
Download safely
- All links on this page go to
download.lenovo.com. This blog does not host or modify any files. - After downloading, right-click the installer, open Properties → Digital Signatures and check that it is signed by Lenovo, Intel or Realtek.
- Avoid "driver updater" programs; they are a common source of unwanted software.
About Windows support: Microsoft no longer provides regular security updates for Windows 7 (ended January 2020), Windows 8.1 (January 2023) or Windows 10 (October 2025). This Bay Trail-based laptop also does not meet the official hardware requirements of Windows 11. If you keep using it online, use an up-to-date browser and security software that still supports your Windows version.
Frequently asked questions
Is the IdeaPad 100-15IBY the same as the 100-15IBD?
No. The "IBY" model uses an Intel Bay Trail Celeron or Pentium processor, while the "IBD" model uses a newer Broadwell-generation processor, so many drivers are different. Check the model name on the label under the laptop and use only drivers for 100-15IBY.
Can I use these drivers on 32-bit Windows?
No. Lenovo provides 64-bit packages for this model, so install a 64-bit edition of Windows.
Which Windows version should I choose?
Windows 10 (64-bit) is the newest system with driver packages for this laptop, so it is the better choice unless you specifically need Windows 7 or 8.1 for older software.
Do I need to update the BIOS when I reinstall drivers?
No. A normal driver reinstall does not require a BIOS update. Flash the BIOS only if Lenovo's release notes describe a problem you actually have, and keep the charger connected during the update.
A driver is installed but the device still does not work. What now?
Restart, then compare the device's Hardware Ids in Device Manager with the hardware listed at the top of this page. If it is a different chip, search Lenovo Support for the exact model and Windows version.
More Lenovo driver guides
Browse other Lenovo IdeaPad driver guides or all Lenovo laptop drivers on Cloud Drivers.
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