Windows error not a valid win32 application

AppLocker can't process the Authenticode hash of such files. Therefore, you can't create Publisher or Hash rules for such files. Files that have contents that don't comply with Windows Authenticode specifications or files that were changed after the signature was applied can be harmful for your computer. Therefore, we recommend that you replace such files by using the files that comply with the Windows security requirements.

To do this, you may have to work with the original software author to publish a new file that complies with the requirements. If you decide to continue working with such files, you can create AppLocker path-based rules to control these files. On Windows 8 and Windows Server based computers, or on Windows 7 and Windows Server R2-based computers that have security update MS installed, you can't create a hash or a publisher rule for unsigned files.

You can only create path-based rules for such files. If that fixes it, fine. If not, use System Restore to go back to a date prior to the beginning of the problem. Click the box that says Show more restore points. You can check for corrupted system files. Open an administrator command prompt and run SFC if the above doesn't help.

EXE and click Run as administrator. Finally if all else fails, you can check the rather cryptic system event log. Once in Event Viewer click on the system log and scroll through the entries looking for those flagged "error" to see if you can find hints as to where the problem could be. When you get your system back in good working order, I urge you to back your system up to an external hard drive and make regular periodic updates to it.

Was this reply helpful? TechNet Community Support. I noticed that your WAIK version is 2. I think you'd better install the latest version of WAIK 3. Yep, if you have tried the latest version of WAIK, the same issue still remained, you need to make sure that your server is up-to-date.

At the same time, the issue could be related to the component corruption, I think you need to run the system file check to have health check on your server to verify missing or corrupted system files on your server. Office Office Exchange Server.

Not an IT pro? Resources for IT Professionals. Sign in. United States English. Data retrieval software can be used to restore the data from the drive. You can get Recoverit data recovery it is a reliable and effective data recovery software. The process that the user needs to follow in this regard has been mentioned as under.

It is to be noted that the process is easy to follow and can also be used if the system is not detecting any internet connection. For the application of the process, it is to be noted that the user does not need to necessarily use the IE. Even if the other browser is being used this process can be applied to get the subjected issue resolved:.

The user then needs to follow the path i. It will lead the user to the following screen:. As can be seen in the figure above. The security level is to be set to medium-high and high NO for the internet settings that have been highlighted at the very top. This also completes the process in full:. Once again the most common processes that a user needs to follow are mentioned in this tutorial. The user might not find the fix to the solution even if the processes above are applied.

It is therefore advised to all the users to kindly go for the other solutions that are mentioned in the forums online.