Microsoft Windows operating-system includes many applications that help you finish your work effortlessly. The software could be upgraded by dint of Automatic update service. But it's sometimes also observed that Windows whenever you attempt to install newest or new application using Automatic update service, you will get Windows update error performa 6400 error 127. The fault may take place because of a lot of reasons like incorrect registry entries, misconfigured system files or as a result of miscommunication between your PC and also the Automatic update service. You won't be in a position to connect to the computer correctly following the occurring of the error issue. In summary, resolve this error is very crucial.


Under normal conditions, you can experience:

As a rule, this error is returned when you run a program that attempts to access the location that is not assigned to use. When the error message is closed, the software will also normally be shut down.

About the symptoms

Possible performa 6400 error 127 error messages:

  • Write error keep popping up
  • Gateway error pop-up
  • Blue screen of death pop-up
  • Error 403 doesn't find
  • Digital storage could not find
  • System software not found
Causes of performa 6400 error 127?

This is caused by a different PC component that can not be properly connected to your computer.

    The lack of files or registry permissions which cause the presence of performa 6400 error 127 on your device may occur based on several reasons. The most common of these relates to the existence of malware programs on your computer. Malware may disrupt and change system files required for the update process. Therefore, this error code requires a systematic way to first find missing or corrupt files, as well as cleaning up malware programs which could be preventing your PC from accessing updates.
Solution to deal with performa 6400 error 127?
Advanced Method

Step 1: Scan virus

If your computer infects malware or virus, it will report a performa 6400 error 127 error to prevent malicious programs from executing. Virus or malware infection is one of the most frequent common viruses and starting a virus scan should be the first attempt. If there is malware or virus on your PC, the issue you occur is a signal of it. The correct and first response to that is running a full virus scan for computer system and personal files as soon as possible. If you already have setup antivirus app, then update it to the latest version and carry out a virus scan.

Step 2: Repair registry

In some conditions, the error is caused by bad system maintenance and damaged registry entries. Registry corruption appears due to software installation or uninstallation, for example users install new apps over old ones without deleting or uninstall them properly. Many Windows users typically treat the system registry as SPOF (single point of failure), which shows that OS is tied to registry and registry corruption may cause system abnormal functions.

In order to clear up the error, you have to check registry entries and delete all superfluous and invalid entries, but that'll be a complex process to many users who are not computer specialist. One wrong operation may cause the computer to fail, such as deletion of wrong input accidentally. If you are not a computer expert, you can try some third-party software which is able to scan and repair damaged registry automatically rather than repairing registry manually. Quite a few such tools are available on the Internet, and most of them do equally well.

Step 3: Disable DEP (Data Execution Prevention)

Data execution prevention was at first used by Microsoft and used on Windows XP Service Pack 2 and later versions. It is a set of security features designed for preventing code execution from non-executable memory segments. It checks memory in order to protect computer againstkeep computer away from virus.

DEP has been enabled for both hardware and software components starting with Windows XP SP2. But some programs are still can't be fully compatible with it. Some software adopt a technique, usually called dynamic code generation, which doesn't tag these codes with an execute permission. As a result, this conflict leads to the problem. In addition, if software is developed without SafeSEH, it may cause performa 6400 error 127 error when DEP is enabled on the computer.

If you get the error because of DEP, you can contact the developer of the software which cause the issue and ask whether they have a method. Alternatively, you can disable DEP for the problematic software and this can be done by following steps:

  • Log in computer with Administrator account to make sure you have fully administrative rights.
  • If your computer is running Windows XP, click "Start" button and select "Run". Windows 7 user can press Windows and R keys. Type sysdm.cpl in Run box and click OK.
  • You can see System Prosperities window where you need to click Advanced tab and then click Settings.
  • The "Performance Options" window will pop up and please click "Data Execution Protection" tab. Select the option "Turn on DEP for all programs and services except those I select" and click "Add" button.
  • Browse files from the Open applet and find the exe files of the software which causes the error code. Select it and click "Open" button.
  • Click "Apply" and "OK" to make changes take effect.

Step 4: Remove bad RAM memory

Normally, a bad or incompatible RAM (Random Access Memory) cause the issue. For instance, you've just added a new memory for your computer to improve performance; however, you start to receive error performa 6400 error 127 from that time on. You can get rid of the problem by simply removing the memory and restarting computer to check if the error has disappeared. If that is valid, get a refund of the memory or replace it with one that is fully compatible with your computer.
Note: Before removing RAM memory, you should turn off computer and remove all cables such as power, network, and so on. If your PC is notebook, turn off the computer and take out the battery.

Step 5: Update Internet Explorer 6.0

The error may take place in Microsoft Internet Explorer 6.0 when you attempt to open an HTML file or web page. At the same time, the IE may stop responding when the error occurs. This error appears especially when the HTML document or web page Internet Explorer 6.0 tries to open includes SPAN tags which were incorrectly closed. If the label tag is not closed properly with tag, the access to the conflict will occur.

About solutions, Internet Explorer is outdated and current Windows 10 introduces Edge. You can setup the later version of Internet Explorer such as Internet Explorer 10 or use other free browsers such as Google Chrome, Mozilla Firefox, Opera, and more.

Another Method to Fix this Problem: performa 6400 error 127

  • Follow the below steps on troubleshooting performa 6400 error 127 in order to finally get rid of it.
  • Step 1: Download SmartPCFixer and Launch the software.
  • Step 2: Run the software and click Quick Scan.
  • Step 3: Click Fix All to fix all systom errors with one click.
  • Congratulations, error removed completely!

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