Home > File library >portcls.sys


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Possible portcls.sys error messages

  • Dll Registration: Failed for file C:\WINDOWS\System32\portcls.sys
  • "Windows could not start because the following file is missing or corrupt: Windows\system32\portcls.sys. Please re-install a copy of the above file."
  • "This application failed to start because portcls.sys was not found. Re-installing the application may fix this problem."
  • "Windows\System32\portcls.sys missing or corrupt: Please re-install a copy of the above file."
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Recommended portcls.sys error Troubleshooting:

Normally you can download portcls.sys file to replace the old or missing one to fix portcls.sys error, but it is not always the case, most of the time the related registry entries would have been modified or gone corrupt once dll errors occurred, simply the replacement doesn’t change this fact. Due to the risk and inconvenience of manually registry editing, it is recommended to apply special designed professional error repair software to fix portcls.sys error completely. Just follow the below instruction:

  • Step1: Free Download Award-Winning DLL Repair software.
  • Step2: Install the software in your computer with ease.
  • Step3: Click Scan button to diagnose dll error on your computer.
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portcls.sys error can be caused by any of the below possibilities.

  • You installed certain program that caused the portcls.sys file was overwrote with an older version or a version which is incompatible with the current setting.
  • A bad or incomplete installation of certain program which cause the portcls.sys file missing or incomplete.
  • The portcls.sys file or its related registry entries was deleted maliciously or mistakenly by virus/spyware or other users.

More possible cause:

  • Damaged swap file
  • File allocation damage
  • Damaged or incorrect version of the portcls.sys file
  • BIOS settings for Wait states, RAM timing, or other BIOS settings
  • Temp folder is not exist or broken
  • A control panel (.cpl) file is damaged
  • Incorrectly installed printer drivers or HP Jetadmin drivers
  • Damaged Java Machine
  • Damaged .log files
  • Damaged entries in the History folder
  • Incompatible or damaged dynamic link library files
  • Viruses infection
  • Spyware infection
  • Damaged or incorrect Msinfo32.exe file
  • Low disk space
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