Error 0x643, Unable to make changes to your software
These are the solutions you can implement to get rid of this error 0x643 on your Windows PC:
1] Fix the Command Interpreter path
If you’re using the SCCM utility, it is recommended that you precede it with a COMSPEC command to set the command line interpreter path right. Here’s how you can do it:
Search for CMD on your Start Menu’s search barWhen the Command Prompt icon shows up, click to run it as administrator and confirm the UAC promptNow, paste the following command there and press enter
As you can see in the prompt’s title, our command line’s path has now been shifted
2] Repair the .NET Framework using the .NET Repair Tool
If the issue is caused by an inconsistency in the .NET Framework, you can try repairing it using the .NET Framework Repair Tool. This method has been found to be successful especially while installing Adobe products. Here’s how you have to do:
Visit the .NET Framework repair tool download on Microsoft.comScroll down a bit and download the utilityOpen the executable file and comply with the licensing agreement to begin the installation processThe tool will then begin to run and you’ll be recommended with the changesApply them and restart your system. Once done, try installing the third-party application again to see if you’re still facing the error
3] Enable .NET Framework 3.5 and 4.8 (If applicable)
Search for ‘Turn Windows Features On or Off’ on your start menu search bar and open the subsequent Control Panel setting.Alternatively, you can run the ‘appwiz.cpl’ command and open the option from thereTick the boxes that say .NET Framework 3.5 and 4.8Click on Ok and confirm it by clicking on Yes in the subsequent promptReboot your PC and check if you’re able to install apps cleanly or not.
This should help!
How to fix the fatal installation error (Error 1603)?
An error coded 1603 pops up when an installation is interrupted. The error message reads “Fatal error during installation”. This error is caused when, either the software you’re downloading already exists or if the process/files relating to the software are already running during the installation. It can also be caused by issues with the Windows Installer. Here are some of the measures you can undertake to steer clear of this error.
Ensure that the user account has the administrative privileges to download the softwareRun Microsoft FixitCheck for Windows UpdateRestart the Windows Installer utility
Hope this was of help to you!