Identify where startup stops
A device with no lights or fan activity needs a power check. A machine that reaches its manufacturer logo but not Windows has a different problem. Record the last visible screen, exact error and any recent update, hardware change or power interruption. Disconnect unnecessary USB devices and try one normal restart.
Use recovery deliberately
If Windows Recovery Environment is available, Startup Repair is an appropriate first option for startup failures. If the failure followed a recent change, review the available restore or update-removal options. Read every recovery screen carefully: repair, reset and clean installation have different effects on applications and files.
Protect files before reinstalling
Locate a verified backup and any drive-encryption recovery key before proceeding with operations that alter the disk. Do not format a partition simply because an online guide suggests it. When the drive is failing or the only copy of important files is inaccessible, pause and discuss recovery before further writes.
Prepare a useful support request
- Provide the model, Windows version and exact message.
- Explain whether the device reaches the logo, sign-in screen or recovery menu.
- List recent updates, new devices and steps already attempted.
- State whether a backup and recovery key are available without sharing the key in a message.
For device-specific or current product instructions, see Microsoft: Startup Repair.
Need help with your own device?
Describe the problem with the model, symptoms and checks already tried. For related help, explore computer service or remote support.
