Cant open Unity: Failed to start the unity package manager

Hello

I bought a new PC and for some reason i cant open unity all the time.
Sometimes randomly it works after trying 50+ times.

I tried everything that i could find on the web like turning of all the virus scanners (i only have the windows standard one). Its completely turned of. I also added upm-win.exe to the exclusions and all the project files.

Im working on Windows 10 and i have the problem on unity: 2019.3.0f1 and 201.2.15f1

The error that i get is : Failed to start the unity package manager local server process. make sure the process files (package manager .exe ) is not blocked by your anti virus

The diagnostic rapport:

6 out of 6 checks passed:
[
{
“name”: “UPM registry reachable”,
“description”: “Make an HTTP request to the UPM package registry”,
“result”: “PASS”,
“detail”: “HTTP/1.1 200 OK\nX-Powered-By: Express\nProvider: Genesis\nDate: Thu, 05 Dec 2019 07:21:04 GMT\nConnection: close”
},
{
“name”: “Ping UPM registry”,
“description”: “Measure the latency of the UPM package registry API”,
“result”: “PASS”,
“detail”: “7 pings made in 5.102 seconds\nAverage latency: 120.93 ms\nMinimum latency: 113.85 ms\nMaximum latency: 129.87 ms\nStandard deviation: 5.56”
},
{
“name”: “Ping UPM download”,
“description”: “Measure the latency of the UPM package download endpoint”,
“result”: “PASS”,
“detail”: “7 pings made in 5.638 seconds\nAverage latency: 22.67 ms\nMinimum latency: 21.49 ms\nMaximum latency: 24.81 ms\nStandard deviation: 1.26”
},
{
“name”: “UPM registry download speed”,
“description”: “Test the Internet connection using the UPM package registry”,
“result”: “PASS”,
“detail”: “Measured speed to the UPM registry: 130.07 Megabits per second”
},
{
“name”: “Speedtest.net”,
“description”: “Test the Internet connection using Speedtest.net”,
“result”: “PASS”,
“detail”: “Measured speed to the Speedtest.net server: 80.06 Megabits per second”
},
{
“name”: “HTTP proxy environment variables”,
“description”: “Detect whether proxy-related environment variables are set (HTTP_PROXY, HTTPS_PROXY, ALL_PROXY, NO_PROXY, UNITY_PROXYSERVER, UNITY_NOPROXY)”,
“result”: “PASS”,
“detail”: “No proxy support has been configured through environment variables.”
}
]

Thanks for the help

5248379–524216–upm-diag.rar (527 Bytes)

Sorry for the delay!

It looks like you are having an issue with the anti-virus software on your system. Can you disable it and see if that solves your problem? Thanks!