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Possible PSUNMain.exe error messages

  • Dll Registration: Failed for file C:\WINDOWS\System32\PSUNMain.exe
  • "Windows could not start because the following file is missing or corrupt: Windows\system32\PSUNMain.exe. Please re-install a copy of the above file."
  • "Windows\System32\PSUNMain.exe missing or corrupt: Please re-install a copy of the above file."
  • "Cannot find PSUNMain.exe"
Free scan and diagnose computer for dll errors

Recommended PSUNMain.exe error Troubleshooting:

Normally you can download PSUNMain.exe file to replace the old or missing one to fix PSUNMain.exe 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 PSUNMain.exe 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.
  • Step4: Click Repair to fix dll error and other found PC errors in seconds.

PSUNMain.exe error can be caused by any of the below possibilities.

  • The uninstall of certain program removed the PSUNMain.exe file which was share by other program or system.
  • You installed certain program that caused the PSUNMain.exe file was overwrote with an older version or a version which is incompatible with the current setting.
  • Computer has hardware problems which cause data of the hard driver corrupted or missing.

More possible cause:

  • File allocation damage
  • Damaged password list
  • Damaged or incorrect version of the PSUNMain.exe file
  • Damaged registry
  • Hardware, CPU overheat, over clocking, broken power supply, RF noise, ground bounce, or bad hard disk controller
  • PSUNMain.exe files that are saved to the desktop
  • 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
  • Spyware infection
  • Damaged or incorrect Msinfo32.exe file
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