What is Cdralw2k?

Cdralw2k.sys is a Windows driver. A driver is a small software program that allows your computer to communicate with hardware or connected devices. This means that a driver has direct access to the internals of the operating system, hardware etc. The free file information forum can help you determine if Cdralw2k.sys is a Windows system file or if it belongs to an application that you can trust.

Run a free scan to check for Cdralw2k drivers in need of updating

Cdralw2k.sys file information

The process known as CDRAL Place Holder Driver (see PxHelp) or CDRAL for Windows (version 2000 Kernel Driver) belongs to software Drag-to-Disc or DirectCD or Adaptec's CDRAL or Roxio Easy Media Creator (version 7) by Sonic Solutions ( or Roxio ( or Adaptec (

Description: Cdralw2k.sys is not essential for the Windows OS and causes relatively few problems. The Cdralw2k.sys file is located in the C:\Windows\System32\drivers folder. Known file sizes on Windows 10/8/7/XP are 2,560 bytes (62% of all occurrences), 23,436 bytes and 6 more variants. 
The driver can be started or stopped from Services in the Control Panel or by other programs. The program has no visible window. The service has no detailed description. Cdralw2k.sys is not a Windows system file. Cdralw2k.sys appears to be a compressed file. Therefore the technical security rating is 34% dangerous, however you should also read the user reviews.

Uninstalling this variant: If there are any problems with Cdralw2k.sys, you may also want to uninstall the program using the Control Panel ⇒ Uninstall a ProgramESSSONIC or PX Engine.

Recommended: Identify Cdralw2k.sys related errors

Important: Some malware disguises itself as Cdralw2k.sys, particularly when not located in the C:\Windows\System32\drivers folder. Therefore, you should check the Cdralw2k.sys process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

part of Adaptec CD software
  terry ceratops  
it's necessary to access your cdrom drives
it doesent work
it was blocked by Easy CD creator
i get a error with it but if i remove it my cdroms dont work
cdralw2k.sys and cdr4_2k.sys are from Easy CD Creator4 which is incompatible with windows xp. It cannot be their forums.
when I removed it my DVD players could not be seen by Windows XP
when i remove it my cds dont work
Follow Fabian's link for a very good solution from Microsoft.
CDralw2k is a Windows Media Player 7.01 file, isn't dangerous. It's a service launch by windows.
I keep getting a "your computer has just recovered from a serious error associated with cdralw2k.sys" and then says you can get the upgrade from roxio and then you have to pay when i didn't even put the program on my computer to begin with!
It seems fairly obvious that it is a driver provided by Adaptec/Roxio and conflicts with Win XP SP-2. Windows prevents it from operating saying there will be a conflict with Windows. Basically, the conflict means the old Adaptec drivers will not work with Windows XP-SP-2
cdralw2k.sys and cdral.dll are drivers installed by Roxio programs. They are incompatible with Windows XP and block access to DVD's by Windows. NERO offers a free tool to deactivate those drivers, but then the Roxio programs wouldn't run. How can a company like Roxio release such a crap?
if you remove it check the kb314060
  Justin V.   (further information)
Old driver for burning software. It was not correctly removed.
  Jiroun   (further information)
belong to ROXIO CD software
  GRILLO   (further information)
This file is DLA utility that allows the drag and drop feature to function with a cd/dvdrom drive. If it is orginally installed on the system by the OEM, then the cdralw2k.sys is essential or XP will not see the drive. Installing other DLA utilities will correct the dysfunction.
  Jay   (further information)
It's a puzzler in my computer its the only system file that has a bak file with it I think my bak file was the original windows sys file in its properties its made by sonic soloutions and the replacement is and its properties states it is a windows 2000 kernel driver im going to switch them and see what happens...
I know that it's causing a conflict on my computer that is crashing my games. I know that it doesn't seem to want to come off. I'm wishing that I could find a replacement, and hoping someone will HELP ME PLEASE!!
The NERO free tool works. Now no problems

Rating chart

Summary: Average user rating of Cdralw2k.sys: based on 21 votes with 20 user comments. 10 users think Cdralw2k.sys is essential for Windows or an installed application. 6 users think it's probably harmless. 2 users think it's neither essential nor dangerous. One user suspects danger. 2 users think Cdralw2k.sys is dangerous and recommend removing it. 5 users don't grade Cdralw2k.sys ("not sure about it").

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Best practices for resolving Cdralw2k issues

A clean and tidy computer is the key requirement for avoiding problems with Cdralw2k. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the Cdralw2k.sys process on your computer, the following programs have proven to be helpful: ASecurity Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

Cdralw2k.sys [all]