Help: "I encountered 0x4b9 error the first time when I installed an Adobe updates and then 0x4b9 alert shows up over and over again as long as I use my laptop. It almost ruined my life and work !!! Who can tell me how to fix 0x4b9 error? TKS!" -- Joanie

When Does 0x4b9 Pop Up?

How did the 0x4b9 happen to your windows? It may appear in different situtations, anyway, most time it will happen during: start-up, shut-down, launching a program, program installation/uninstallation, etc.

How to Fix 0x4b9

To stay away from "0x4b9" error in future, there are 2 approach waiting for you, manual and aumatic methods. It is a good way to avert 0x4b9 mannually for users who are expert in computer knowledge, while for normal users, applying an automatic fixing tool like SmartPCFixer will be highly recommended, it will not only correct your current error and save you a lot of time with simple clicks, but it can also detect all potential threats and prevent them from your system. By reading this post, you will learn both methods and choose the right one.

How to Fix 0x4b9 ?

1. Click download button below to have SmartPCFixer.

2. Open the 0x4b9 repair tool, it will give your computer a full scan automatically, and it will generate a result of errors and threats which need to be cleaned on your computer.

3. Through pressing on 'Fix All' button, the 0x4b9 error will be solved as well as another more problems which was detected in previous procedure.

How to fix 0x4b9 Manually ?

For users who are good at computer technical knowledge, it is not diffcult to follow instructions below to repair 0x4b9 error by hand.

  • 1. Remove/Uninstall applications which installed recently.
  • Sometimes, 0x4b9 error can be caused by low quality softwares, those programs may overwritten system files. get rid of them from your pc, the 0x4b9 error will be cured as well. Incidentally, SmartPCFixer is very handy to uninstall unwanted softwares.

  • 2. Upgrade your windows system.
  • Numerous users accustomed to pay no attention to windows updates information, this behavior is not suggested and may result in 0x4b9 error and further damage to your personal computer. Please click "Start", click "All Programs" and find "Windows Update" and click, then click "install update" finally.

  • 3. Conduct [SFC] command to fix 0x4b9 error.
  • SFC(the full name is system file check) is a useful windows system ultility which can fix 0x4b9 error when the error cause is file corrupted.
    Type "CMD" in the searching box after clicking "Start" button, then right click on "cmd.exe" and choose to "run as administrator".
    Type "SFC/scannow" in the new opened window, press "Enter".
    Waiting for the system notification: if catching "Windows Resource Protection found corrupt files but was unable to fix some of them" alert, it means the manual solution is failed, you should apply repair tool -- SmartPCFixer to fix it thoroughly.

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