However, the reality is sometimes different – after upgrading you find out that your system is not functional, out of the blue. And this is very frustrating. It often happens to VMware Fusion users who upgrade the macOS version or just the virtual machine version. On rare occasions, it has also been reported by Windows users. After upgrading, the users are not able to open the virtual machine (or install new machines) and get the following message: Cannot find a valid peer process to connect to.
How to fix Cannot find a valid peer process to connect to VMWare Fusion?
Cannot find a valid peer process to connect VMware on macOS
1. Reinstall the official VMware version (and run First Aid)
The issue is known by VMware and they offer this general troubleshooting advice. However, many users complained that after performing all of these, they still got the error. So try the next steps.
2. Allow VMware extension
After reinstalling the virtual machine, a pop-up might warn that the VMware extension will be blocked. So what you need to do is to open System Preferences, then go to Security and Privacy. Here, click on General and click on the allow option for the VMware extension. Additionally, look for the lock files and remove them. Open the VMware file with all containing files, look for files with a .lck extension and delete them.
Cannot find a valid peer process to connect VMware on Windows 10
It is possible that you might first have to get Admin permission to perform this action. If you can’t see such a file, it means that the problem lies elsewhere. Hopefully, these guidelines will help you fix the problem. Use the comments section below to tell us if our recommendations worked for you.
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