CDrom.sys is Corrupt: 9 Steps to Fix the BSOD Error

Fix & Repair Solved issue

Question asked by:

Jasna S.


Corrupted CDrom.sys & BSOD

My PC's been acting all weird lately and it turns out my CDrom.sys file's gone corrupt and giving me a blue screen of death.
Anyone else battled this issue before? Would really appreciate the knowledge and tips you might have.

Thanks in advance, everyone!
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CDrom.sys is Corrupt 9 Steps to Fix the Error

Imagine you’re getting ready to play your favorite game on your computer, but when you pop the game disc into the CD drive, nothing happens, or even worse — you get a BSOD error1, and your PC crashes…
It’s like trying to start your bike, but the chain’s broken. This could be a sign of something called “CDrom.sys Corruption.” 

In this guide we’ll discuss some easy and advanced ways to resolve the CDRom.sys BSOD error.

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What Is CDrom.sys & Reasons Why The Error Happens?

CDrom.sys is like a rulebook file for your computer. It tells your computer how to talk to the CD drive, kind of like how you need instructions to build a cool LEGO set. When CDrom.sys is corrupted, it’s like having pages missing from your LEGO instructions. Your computer gets confused and doesn’t know how to use the CD drive properly.

This can happen for a few reasons. Maybe there was a small glitch when updating your computer, or perhaps a sneaky virus decided to mess things up.

Here are more reasons why CDrom.sys error happens:

  • Corrupt or Missing Driver Files2 – Outdated or damaged driver files may trigger the CDrom.sys error.
  • Hardware Incompatibility – Compatibility issues between Windows and your computer’s hardware can lead to this error.
  • Software Conflicts – Conflicts with other programs on your computer might interfere with CD/DVD functionality.
  • Malware Infections and Registry Errors – Malicious software and registry errors are potential culprits behind CDrom.sys corruption.

How Does the CDRom.sys BSOD Look Like?

It’s important to first identify if we’re dealing with the correct problem.
Typically, the error when Blue Screen of Death occurs looks like this:

A problem has been detected and Windows has been shut down to prevent damage to your computer. The problem seems to be caused by the following file: cdrom.sys.

🙁 Your PC ran into a problem that it couldn’t handle, and now needs to restart. You can search for the error online: [BSOD] (cdrom.sys).

STOP 0x00000050: PAGE FAULT IN A NONPAGED AREA (cdrom.sys)
STOP 0x0000007A: KERNEL DATA INPAGE (cdrom.sys)
STOP 0x0000000A: IRQL NOT LESS EQUAL (cdrom.sys)

We also have an extensive guide showing how to deal with any BSOD error here.

3 Beginner-friendly Steps to Resolve the “CDrom.sys is Corrupted” Error

Let’s begin with 3 easy methods to try to resolve your cdrom.sys errors that anyone can do.

Solution 1: Check and Update Windows

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Microsoft regularly releases updates to improve system stability and fix known bugs. Installing the latest Windows updates can resolve known issues, including any related to CDrom.sys.

  • Go to “Settings”.
  • Click on “Update & Security”.
Choose Update & Security
  • Select ‘Windows Update’ and “Check for updates”.
  • Install any available updates.
Check for Updates

Solution 2: Do a Virus Scan

Viruses and malware can corrupt system files, including CDrom.sys. Running a full system virus scan can detect and remove any malicious software, potentially resolving related system errors.

Run a Malware Scan
  • Use Windows Security or your antivirus program.
  • Conduct a full system scan.

Solution 3: Run Windows Hardware Troubleshooter

This tool is designed to automatically find and fix issues with your PC’s hardware components. It’s particularly useful for diagnosing problems with device drivers and hardware conflicts, which could be the root cause of CDrom.sys issues.

  • Press ‘Win + R’, type “msdt.exe -id DeviceDiagnostic”, and hit ‘Enter’.
Type msdt.exe -id DeviceDiagnostic
  • Follow instructions on the Troubleshoot window that will appear.
msdt.exe -id DeviceDiagnostic Window

6 Advanced Ways To Fix the Error

Now if those easier solutions didn’t work, no worries just yet. Let’s continue with these 5 advanced ways to fix the error.

Solution 4: Run DISM and SFC Commands to Restore Files

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These tools are crucial for repairing system files and maintaining system integrity. DISM repairs the Windows image, while SFC scans and fixes any corrupted system files, including potentially the CDrom.sys file.

  • Open “Command Prompt” as admin.
Type CMD then run as administrator
  • Run dism /online /cleanup-image /restorehealth.
Type dism online cleanup-image restorehealth
  • Then, execute sfc /scannow.
Type sfc scannow
  • Restart your PC after completing the scans.

Solution 5: Do a Clean Computer Boot

A clean boot starts Windows with a minimal set of drivers and startup programs. This helps in identifying if background applications or services are causing conflicts with system files like CDrom.sys.

  • Press ‘Win + R’, type “msconfig”, and hit ‘Enter’.
Type msconfig
  • In the “System Configuration”, go to the “Services” tab.
  • Check “Hide all Microsoft services” and disable the rest.
Hide all Microsoft services Disable all
  • Go to the “Startup” tab and open “Task Manager”.
  • Disable all startup items, then restart your PC.
Disable apps in Startup

Solution 6: Try Editing the Registry

The Windows Registry holds critical system settings. Incorrect or corrupt registry entries can lead to system errors. Editing specific registry keys related to CDrom.sys can help in resolving any conflicts or corruptions.

  • Open “Registry Editor”.
Type regedit
  • Locate:
  • Delete “UpperFilters” and “LowerFilters”.
Delete UpperFilters and LowerFilters
  • Navigate to HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services/atapi.
  • Recreate the deleted key.

Solution 7: Update the CD/DVD Driver

Outdated or corrupt drivers can lead to system errors. Updating your DVD/CD-ROM driver ensures that it is compatible with your system and functioning properly, potentially resolving any issues with CDrom.sys.

  • Navigate to “Device Manager”.
Right-click Start button and select Device Manager
  • Right-click on DVD/CD-ROM drive and select “Update driver”.
Click Update Driver under DVD CD ROM Drives
  • Choose automatic search for driver software.
Click Search Automatically for DVD Driver

Solution 8: Reinstall the CD/DVD Driver

Sometimes, drivers can become corrupt or malfunction. Reinstalling the driver for your DVD/CD-ROM can reset any errors and restore proper functionality, which might fix the CDrom.sys error.

  • Open “Device Manager”.
Right-click Start button and select Device Manager
  • Right-click on the DVD/CD-ROM drive and select “Uninstall device”.
  • Restart your PC to allow Windows to reinstall the driver.
Click Uninstall Device under DVD CD ROM Drives

Solution 9: Do A Full Windows System Restore

This feature rolls back your system’s settings to a previous point in time. If CDrom.sys errors started after a recent change or update, a system restore can undo these changes without affecting personal files.

  • Access “System Restore” through “Control Panel”.
Open System Restore via Control Panel
  • Follow the prompts to revert your system to a previous state.
System Restore

Final Words

By now you should’ve solved the error successfully.

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If your CDrom.sys issues are still not fixed — feel free to reach out to us via email and share your problem.

  1. BSOD Error explained — Techtarget []
  2. Driver files explained — via youtube []
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About the author
Ross Zilbert - Expert Author

Ross is an avid author on He’s been working in the field of software and networks as a technician for more than 6 years.

Now he’s sharing his expertise and awesome guides with the broad public.