Windows error 0x8007045D (often typed as 8007045D or 08007045D) means ERROR_IO_DEVICE: Windows Setup could not complete an input/output request. During a Windows 8 installation, the failed device may be the USB or DVD installer, its port or cable, a controller, or the disk receiving Windows. Recreate the installation media first, then remove extra hardware, isolate connections, and test the source and destination disks. Do not format or delete partitions until any recoverable data is backed up.
What 0x8007045D means during Windows 8 Setup
Microsoft Q&A defines 0x8007045D as “ERROR_IO_DEVICE” — “The request could not be performed because of an I/O device error.” The number identifies an I/O failure, not a single defective part. Setup may be unable to read files from the installer, expand them, or write them to the destination disk.
As an Amazon Associate I earn from qualifying purchases.
The point in Setup where the message appears is your first diagnostic clue:
The Tool Desk
Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →- Booting from the USB or DVD, or copying setup files: suspect the installation media, optical drive, USB port, cable, or storage controller.
- Expanding files or verifying files: either the media path or the destination disk can be failing.
- Writing, formatting, or installing to a selected partition: suspect the destination disk, its connection, or the controller.
The same code can therefore appear on two computers for entirely different reasons. A fresh installer that works elsewhere is evidence against the media; a fresh installer that fails on the same computer shifts suspicion toward the target disk or its connection.
#1 Best Overall
- Drivers Pack for Internet, Wireless, Lan Ethernet, Video Graphics, Audio Sound, USB 3.0, Motherboard, Webcams, Bluetooth, Chipset. It will scan your Windows and install the latest drivers. No Internet connection is required. Perfect to update drivers, installing new hard drive or installing a missing driver. Supports Windows 10, 7, 8, 8.1, Vista, & XP in 64 & 32 Bit. In 42 Languages
Before changing anything: protect data and record the failure
Record the exact wording and stage
Write down the complete code, the screen on which it appears, and what Setup was doing. Note whether the failure occurs immediately after booting, while copying or expanding files, or after you choose the destination partition. Also record which USB port, DVD drive, and internal disk are connected. This prevents you from changing several variables at once and losing the clue that identifies the failed path.
Back up files before repair or partition work
An I/O error can accompany a physically deteriorating drive. If the computer still starts, copy important documents, photos, and other irreplaceable files to another disk before running repair scans. If Windows will not start, use another working computer or a recovery environment to copy data to external storage. Treat partition deletion, formatting, and any operation that rewrites the disk as destructive until your backup is verified.
1. Recreate the Windows 8 installer
A corrupt or incorrectly created bootable installer is a documented cause of this error, and rebuilding it is the highest-value reversible test.
Windows Errors? Fix Them Before They Spread
Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallOutdated Drivers Are Slowing You Down
One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchRank #2
- 【PLUG & PLAY – EASY CONNECTION】 Simply connect the Amicool External DVD Drive to your computer’s USB or Type-C port, and it will usually be detected right away without the need for extra drivers. For stable operation and sufficient power, we recommend connecting it directly to a USB port on your computer (for desktops, use a rear motherboard port) and avoiding USB hubs or extension cables. This user-friendly design ensures quick setup for both beginners and professionals.
- 【FAST & STABLE DATA TRANSMISSION】 Featuring dual interfaces (USB 3.0 and Type-C), this optical drive supports data transfer speeds up to 5Gbps. To ensure a reliable connection, please connect it directly to your computer. The drive supports multiple disc formats such as DVD+R, DVD-R, CD-R, and CD-RW. Please note: It does NOT support DVD-RAM, Blu-ray (BD) discs, or certain proprietary formats. Maximum DVD read speed is 8x, and maximum CD read/write speed is 24x.
- 【UNIVERSAL COMPATIBILITY】 Compatible with Windows 11 / 10 / 8.1 / 7, Linux, and all macOS (Intel & Apple Silicon) for MacBook Air/Pro, iMac, Mac mini; NOT for iPad/iPhone/Apple TV/ChromeOS; for Mac, insert disc FIRST, connect directly to USB port (use a POWERED USB‑C hub for M1/M2/M3 to avoid insufficient power), and open media with VLC Player (Apple DVD Player not supported). Works with most computers from brands like Apple, Dell, HP, Lenovo, ASUS, Acer, and Samsung. 👉 Important: Designed specifically for computers. It is NOT compatible with TVs, tablets, game consoles (e.g., PlayStation, Xbox), car stereos, or standalone Blu-ray players.
- 【SLIM & PORTABLE DESIGN – BUILT-IN CABLE, READY TO GO】With an integrated cable design, slim body, and stylish matte finish, this lightweight CD/DVD drive is both durable and portable. Easily slip it into your laptop bag or backpack and use it anytime, anywhere—perfect for business, travel, or home use
- 【MULTIFUNCTIONAL & RELIABLE OPERATION】 Equipped with intelligent error correction and anti-shock technology, this drive supports reading, writing, and burning discs. If the drive is not recognized or a disc cannot be read, try restarting your computer or testing with a different, standard CD-R or DVD-R disc. The pop-up button and built-in cable design offer convenience and portability. For desktop PCs, connecting to a rear USB port is recommended for optimal power and performance.
- On a known-good computer, obtain a legitimate Windows 8 installation image appropriate to your license and edition.
- Use a reliable USB flash drive or a writable DVD and a trusted method for making bootable media. If the existing drive has been used repeatedly or shows read errors, use a different, known-good drive rather than overwriting it.
- Let the media-creation process finish completely. Do not remove the USB drive or interrupt the DVD burn while files are being written.
- Safely eject the finished media, reconnect it to the problem computer, and try Setup again.
If the new media succeeds, the original installer was the likely fault. Keep the successful media available for the rest of the installation. If the same code returns at the same stage, continue with the connection and disk tests instead of repeatedly rebuilding identical media.
2. Strip Setup down to essential hardware
Microsoft’s general installation guidance recommends disconnecting nonessential peripherals while troubleshooting. Shut the computer down and remove:
- Other USB flash drives and external hard disks
- Printers, scanners, cameras, and card readers
- USB hubs, docking stations, and nonessential adapters
- Additional accessories that are not required to start Setup
Leave only the display, keyboard, mouse, installer media, and the internal disk you intend to test. An external drive can be mistaken for the destination, and a peripheral or hub can interrupt transfers. Retry with the simplified arrangement. Reconnect devices only after Windows 8 installs successfully.
Rank #3
- 【External CD/DVD Drive】The body and packaging of GODBPNYMU CD burner products are made of durable materials. The core component is an external CD/DVD drive that is directly powered through a USB 3.0 & Type-C port, or via a power adapter. From the beginning of the design, we are committed to being your convenient partner for digital life.
- 【Plug and Play - No Driver - Easy Operation】Connect the GODBPNYMU external DVD drive to the USB or Type-C interface of the computer, and the CD burner will automatically recognize it. It is easy to operate without a driver, and can be quickly and smoothly operated by beginners and professionals. It is suitable for laptops, desktop all-in-one computers, and mini computers that are not equipped with built-in optical drives. It is recommended that desktop computer users connect the optical drive to the USB interface on the back panel of the chassis for optimal reading performance. Note: The device icon will only be displayed after the Mac system successfully inserts and reads the disc.
- 【Universal compatible systems and devices】Compatible with Windows 7/8.1/10/11/XP/Vista, 2000, ME, Linux, and all versions of macOS systems. Can work with Apple, Dell, Sony, Toshiba, NEC, IBM, HP, Lenovo, Asus, Samsung, Acer, and other mainstream computer brands. It is only suitable for laptops, desktop computers, all-in-one computers, and mini computers. It is recommended that desktop computer users connect the optical drive to the USB interface on the chassis backplane for optimal reading performance. Note: Not supported for car, TV, tablet, phone, iPad, PS4/5, Xbox, Switch, projector, Chromebook.
- 【High speed transmission - supports CD read-write format】And it is backward compatible with USB 2.0/1.1. Supports up to 8x speed DVD read/write and 24x speed CD read/write, with a transfer rate of up to 5 Gbps. Supports CD±R/RW, CD-ROM, DVD±R/RW, DVD-RAM, DVD+R DL, DVD-R DL, VCD, SVCD. Can be used for playing audio and video, data backup, file burning, software/system/game installation. Note: Blu-ray disc reading is not supported.
- 【After sales guarantee for CD burners】We provide a 180-day warranty and technical support. The package includes: external CD/DVD drive x 1, user manual x 1.
3. Change one port, drive, or cable at a time
Do not swap every component simultaneously; the aim is to learn whether the error follows one part of the I/O chain.
USB installer
- Move the installer to a different USB port directly on the computer, not through a hub or dock.
- Retry Setup and note whether the failure stage changes.
- If the error persists, test the same installer on another known-good computer. A failure that follows the USB drive points to the media; a failure that stays with the original computer points to its port, controller, or disk.
DVD installer
- Inspect the disc for scratches, fingerprints, or visible damage and clean it gently from the center outward.
- Try a different optical drive or a freshly burned disc. An optical drive that struggles with other known-good discs is itself suspect.
Cables and external enclosures
For an external source or destination, replace the cable with a known-good one and connect directly to the computer. SanDisk documents 0x8007045D in USB and external-storage workflows, so a cable or enclosure can be part of the failure even when the disk inside is healthy.
4. Test the source and destination disks with CHKDSK
If fresh media and minimal hardware do not solve the problem, check the volume that Setup is reading from or writing to. Microsoft Q&A identifies CHKDSK as the check for this I/O error.
Rank #4
- remier brand: Hewlett‑Packard discs are back in stock with top-grade quality. Save files quickly—burning time is about 20–25 minutes when used with 8X capable DVD Double Layer writers.
- Compatible with most DVD burners, DVD players, and DVD-ROM drives on Windows and Mac systems. Perfect for: Data backup, Video storage, Music libraries, Photo archiving, System recovery discs, Business data storage
- 8.5GB storage capacity per disc, nearly double the capacity of standard single-layer DVDs.
- DVD+R DL (Double Layer) format, ideal for high-capacity data storage and video recording.
- Low cost per megabyte, making them ideal for file backups before accidental deletion. Designed for long-term data archiving and storage, supporting over one million read cycles to ensure extended data protection.
Run CHKDSK from a working Windows installation
- Connect the suspected disk to a working Windows computer, or start the existing Windows installation if it still boots.
- Open Command Prompt with administrator privileges.
- Identify the correct drive letter in File Explorer before running a command. Drive letters can differ when a disk is attached to another computer.
- Run
chkdsk X: /f, replacingX:with the volume being checked. The/foption asks Windows to correct file-system errors. - If the disk remains readable and you have a current backup, a deeper surface check can be started with
chkdsk X: /r. It can take a long time, especially on a large or damaged disk; do not interrupt it unless the computer is in danger of shutting down.
Run CHKDSK from Windows Recovery Environment
When the installed Windows copy will not start, boot from Windows installation or recovery media and choose the repair or recovery options that open a Command Prompt. In that environment, the Windows volume may not be C:.
- At Command Prompt, type
diskpart, thenlist volumeto display volumes and their letters. - Type
exitto leave DiskPart. - Use the letter that contains the Windows or data volume, for example
chkdsk D: /f.
Never assume that C: is the correct target in recovery mode. Checking the wrong volume wastes time and can create confusion about the result.
Do these 3 things before closing this tab:
1Repair Windows errors before they cause bigger problems2Fix the driver behind crashes, sound loss and screen glitches3Clear out junk files and repair common Windows errorsInterpret the result conservatively
- No file-system errors: this does not prove the disk or controller is healthy; continue testing with another port, cable, or system.
- Errors corrected: retry Setup with the fresh installer, but keep the backup because the underlying I/O problem may recur.
- Bad sectors, repeated read failures, or the disk disappearing: stop destructive installation attempts, copy recoverable data, and plan to replace or professionally diagnose the disk.
5. Use the failure stage to choose the next test
| Observation | Most likely path | Next reversible test | What a result means |
|---|---|---|---|
| Failure while reading or copying files | USB/DVD media, optical drive, port, cable, or controller | Fresh media, another direct port, another drive or cable | If the error follows the installer, replace the media; if it stays with the computer, investigate its I/O hardware. |
| Failure while expanding files | Media path or destination disk | Retry with known-good media, then run CHKDSK on the destination | A media change that fixes it implicates the installer; persistent failure requires disk and connection checks. |
| Failure while formatting or writing the target | Destination disk, cable, or controller | Back up data, check the target volume, and test the disk on another system | Recurring errors or bad sectors justify replacement rather than repeated reinstalls. |
| Failure occurs only with one USB port or cable | That port or cable | Use a different direct connection | A successful install isolates the original connection without changing the disk. |
6. Retry the installation without destroying evidence
After each change, retry with the same installation steps and note the exact point of failure. If Setup reaches the disk-selection screen, select only the intended destination. Do not delete partitions or format volumes merely to clear 0x8007045D; those actions can remove data and will not repair a failing cable, controller, or disk. Perform them only after the backup is complete and diagnostics indicate that the destination is suitable.
Best Value
- 13mm for ultra slim and light
- Mac/PC Support
- Includes USB 2. 0 and Type-C cables
- Nero BackItUp function for Android Devices
- DISC Encryption II for password-controls and hidden-file functionality
If the installation succeeds after a media or port change, shut down and reconnect peripherals one at a time. This confirms that the new installation is stable and identifies any device that brings the I/O failure back.
7. When the problem points to hardware
Escalate the diagnosis when all of the following have been tried: freshly created media, a minimal peripheral setup, alternate ports and known-good cabling, and CHKDSK or equivalent checks on the source and destination volumes.
- Test the installer drive and target disk on another computer, if the interfaces permit it.
- Run the disk manufacturer’s diagnostic utility when available, following its instructions and preserving your backup first.
- Consider replacing the USB/DVD drive, cable, or internal disk that consistently reproduces the error.
- If multiple known-good disks and installers fail on the same computer, the storage controller or mainboard connection may require professional service.
A replacement USB flash drive is generally an inexpensive way to eliminate the installer branch. Replacing an internal disk costs more and should be reserved for recurring I/O faults, bad-sector reports, repeated disconnects, or diagnostics that identify the disk as unreliable.
Quick Recap
Common mistakes that make 0x8007045D harder to diagnose
- Reusing the same questionable installer: rebuild it on a known-good computer before blaming the target disk.
- Leaving external storage connected: unplug other flash drives and external disks so Setup has one clear destination.
- Changing several variables at once: swap one port, cable, or drive at a time and record the outcome.
- Running repair scans without a backup: copy recoverable data first, especially when the disk clicks, disconnects, or reports bad sectors.
- Formatting to “force” the install: formatting cannot correct a failing physical connection and can erase the only copy of your files.
- Assuming the code proves the hard drive is bad: 0x8007045D identifies an I/O failure somewhere in the path, not a specific component.
Practical decision sequence
- Record the code and the exact Setup stage.
- Back up data that is still readable.
- Recreate the installer on a known-good computer using a different USB drive or DVD if possible.
- Disconnect every nonessential peripheral.
- Try one alternate port, drive, or cable at a time.
- Run CHKDSK against the correctly identified source or destination volume.
- If bad sectors or repeated disconnects appear, stop reinstalling and replace or professionally diagnose the disk.
- If the error survives all tests, compare the installer and target on another system to isolate a controller or motherboard issue.
As an optional shortcut after these manual checks, Outbyte PC Repair can address more than 100 common Windows issues, clean temporary and cache files, check selected Windows settings and missing updates, and provide an app-crash log. It runs on Windows 11, 10, 8, and 7 with a category-based free trial of at least two days before a subscription; results vary, it does not repair every crash, and it complements rather than replaces antivirus protection.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
