What is portd2k?
Portd2k.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 OS, hardware etc.
The free file information forum can help you determine if portd2k.sys belonging to the Windows system or an application you can trust.
Portd2k.sys file information
The process known as BounceBack Port I/O or ABS Port I/O or CMS Port I/O belongs to software CMS PortIO Service or ABS PortIO Service or Windows (version 2000 DDK driver) or BounceBack by CMS Peripherals (www.cmsperipherals.com) or Windows (windows.microsoft.com) (version 2000 DDK provider).
Description: Portd2k.sys is not essential for the Windows OS and causes relatively few problems. portd2k.sys is located in the folder C:\Windows\System32\drivers.
Known file sizes on Windows 7/XP are 14,976 bytes (60% of all occurrences), 7,296 bytes, 7,424 bytes or 7,212 bytes.
The driver can be started or stopped from Services in the Control Panel or by other programs. The program is not visible. There is no detailed description of this service. Portd2k.sys is not a Windows system file. portd2k.sys seems to be a compressed file. Therefore the technical security rating is 40% dangerous.
Recommended: Identify portd2k.sys related errors
Important: Some malware disguises itself as portd2k.sys, particularly when not located in the C:\Windows\System32\drivers folder. Therefore, you should check the portd2k.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.
Security Task Manager shows all running Windows tasks including embedded hidden functions (e.g. keyboard or browser monitoring, autostart entry). A unique security risk rating indicates the likelihood of the process being potential spyware, malware, keylogger or a Trojan.
Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, trojans, keyloggers, malware and tracking threats from your hard disk. Ideal supplement to Security Task Manager.
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spoolsv32.exe ib15.dll fwkbdrtm.sys portd2k.sys shelluha.dll msagentxp.exe system16.sys ycomp.dll xampp-control.exe chromehelper.exe swtrayv4.exe [all]