Intel Serial IO Driver - 11 (25H2 or Later) Driver 30.100.2534.35
by Lenovo
What you are downloading
This file comes straight from Lenovo's own download server. We do not host it, repack it or change it in any way - the download button takes you to the manufacturer's server, not to a file of ours.
- Package
- r36io01w.exe, 1.3 MB
- Published by
- Intel Corporation
- Digitally signed
- Windows checks this signature before installing
- Inside
- 16 files - the driver itself, its setup instructions and a digital signature file
Show the full listHide the list
- setup.cmd2 KB
- iaLPSS2_GPIO2_WCL.inf7 KB
- iaLPSS2_GPIO2_WCL.sys174 KB
- iaLPSS2_I2C_WCL.inf9 KB
- iaLPSS2_I2C_WCL.sys213 KB
- iaLPSS2_I3C_WCL.inf7 KB
- iaLPSS2_I3C_WCL.sys151 KB
- iaLPSS2_SPI_WCL.inf8 KB
- iaLPSS2_SPI_WCL.sys163 KB
- iaLPSS2_UART2_WCL.inf8 KB
- iaLPSS2_UART2_WCL.sys319 KB
- ialpss2_gpio2_wcl.cat12 KB
- ialpss2_i2c_wcl.cat12 KB
- ialpss2_i3c_wcl.cat12 KB
- ialpss2_spi_wcl.cat12 KB
- ialpss2_uart2_wcl.cat12 KB
Nothing happens on its own: you download the file and decide yourself whether to install it.
- Manufacturer
- Lenovo
- Driver version
30.100.2534.35- Release date
- June 22, 2026
- Supported Windows
- Windows 11
- Architecture
- 64-bit (x64)
- File size
- 1.3 MB
- File name
r36io01w.exe- Digital signature
- Signed - catalog
iaLPSS2_I2C_WCL.cat - INF version
08/20/2025,30.100.2534.35- INF provider
- Intel Corporation
- Device class
- System
- Source
- Lenovo official catalog
- Last verified
- October 5, 2026
- SHA-256
4c2e7ac329700eaf2a9097d4fc4a79d269a1942bb855176b9889827a9789a4d3
Supported hardware IDs (6)
- PCI\VEN_8086&DEV_4D50
- PCI\VEN_8086&DEV_4D51
- PCI\VEN_8086&DEV_4D78
- PCI\VEN_8086&DEV_4D79
- PCI\VEN_8086&DEV_4D7A
- PCI\VEN_8086&DEV_4D7B
Compare with your device: Device Manager → right-click the device → Properties → Details → Hardware Ids. If one of the values above matches, this driver supports your hardware.
How to install
Before you start: create a restore point (Start → type "Create a restore point" → Create). It takes a minute and lets you undo everything if the new driver turns out worse than the old one. This driver is made for Windows 11 (64-bit) - if your Windows is different, look for another version further down the page.
- Download the file with the button above - it comes directly from Lenovo official catalog.
- Double-click the downloaded file and follow the prompts - the installer does the rest.
- If it asks to restart the computer, let it.
Check it worked: open Device Manager again. The device should no longer show a warning icon, and its driver version should match the one on this page.
How to roll back
If the device stops working after the update: Device Manager → right-click the device → Properties → Driver tab → Roll Back Driver. If that button is greyed out, use the restore point you made before installing (Start → "Recovery" → Open System Restore).
Other versions of this driver
| Version | Released | Source |
|---|---|---|
| 30.100.2534.18 | April 9, 2026 | Lenovo official catalog |