0X80070017

Disk & File System The Cyclic Redundancy Check Failed Applies to: Windows 7, Windows 10, Windows 11

What it means

Data on the disk is corrupted and failed an integrity check — often points to physical drive damage or a bad copy/burn.

Also seen as: 0x80070017, CRC error

Quick fix steps

Run "chkdsk /f /r" on the affected drive.
If reading from a disc or USB drive, try a different one — the error may be with the media itself, not your PC.
Back up what's still accessible immediately if this is your main drive.

For the full step-by-step walkthrough, see "Disk Error" or "Windows Detected a Hard Disk Problem".

Frequently Asked Questions

Does this mean my installation media is corrupted?

Yes, this is a common specific cause — a scratched disc or a corrupted downloaded ISO/USB installer is frequently responsible for this exact error during installation.

Should I redownload the installation media entirely?

Yes, that's often the most reliable fix — using the official Media Creation Tool to build fresh installation media resolves this when the original source was the problem.

Other error codes

0X80070570 — The File or Directory Is Corrupted and Unreadable

Windows found file system corruption — could be the drive itself, a bad copy operation, or a failing disk.

0X8007002C — Unspecified Error During Copy/Install

Often appears during large file copies or installs and points to file system errors or a flaky connection to an external/network drive.

0X80071AC3 — The File System Is Corrupted

A more explicit version of file system corruption, often seen on external or removable drives.

0X80070780 — The File Cannot Be Accessed by the System

A specific file is locked, corrupted, or the drive has a developing hardware issue preventing access.