Installing Windows 10 from USB on a Lenovo laptop can erase the internal drive, and Windows 10 is outside standard support in 2026. Use Windows 11 instead when the Lenovo model supports it.
- Back up personal files and save BitLocker/device-encryption recovery keys, application licenses, and any Lenovo recovery data you need.
- Create legitimate Windows installation media on a USB drive and verify the laptop’s licensed Windows edition.
- Restart the Lenovo and use the documented one-time boot menu for that model to start the USB in UEFI mode.
- In Windows Setup, choose the correct disk and partitions. Do not delete recovery or data partitions unless a clean wipe is intentional and your backups are verified.
- Complete setup, then install updates and Lenovo-supported drivers before restoring all files.
Check for a less destructive repair option
If the existing Windows installation still starts, Reset this PC or Lenovo’s recovery tools may solve the problem without manually deleting partitions.
Storage drivers can matter
Some Lenovo models use storage-controller configurations that Windows setup may not recognize without the correct driver. Obtain model-specific drivers from Lenovo rather than generic driver sites.
A reinstall does not renew Windows 10 support
Standard Windows 10 support ended October 14, 2025. A clean installation in 2026 should be reserved for a specific legacy need.
For this 1187 procedure, keep the original configuration or source material until the result has been tested in normal use. That makes it possible to distinguish a failed change from a separate problem and provides a clean way back when the adjustment is reversible.
Kermit Matthews is a freelance writer based in Philadelphia, Pennsylvania with more than a decade of experience writing technology guides. He has a Bachelor’s and Master’s degree in Computer Science and has spent much of his professional career in IT management.
He specializes in writing content about iPhones, Android devices, Microsoft Office, and many other popular applications and devices.