Unity Package Manager Error

Hello guys

Am unable to open unity due to the package manager issue that is happening with a lot of people, the error is :
Failed to start the Unity Package Manager local server process. Make sure the process [C:/Program Files/Unity/2019.3.0f6/Editor/Data/Resources/PackageManager/Server/UnityPackageManager.exe] is not blocked by your unti-virus configuration

I don't have an anti-virus, i stopped windows firewall, i don't use proxy, i don't have unity proxy environment settings, i tried to re-install it worked for the first lunch and after that the problem happened again, am using windows 10, and am so disappointed too

diagnostic_report_Wed_02_12_2020__62503_71
4 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: Wed, 12 Feb 2020 03:25:06 GMT\nConnection: close"
},
{
"name": "Ping UPM registry",
"description": "Measure the latency of the UPM package registry API",
"result": "WARNING",
"detail": "3 pings made in 6.393 seconds\nAverage latency: 287.14 ms\nMinimum latency: 229.76 ms\nMaximum latency: 320.31 ms\nStandard deviation: 49.89"
},
{
"name": "Ping UPM download",
"description": "Measure the latency of the UPM package download endpoint",
"result": "WARNING",
"detail": "2 pings made in 5.169 seconds\nAverage latency: 143.03 ms\nMinimum latency: 139.57 ms\nMaximum latency: 146.49 ms\nStandard deviation: 4.89"
},
{
"name": "UPM registry download speed",
"description": "Test the Internet connection using the UPM package registry",
"result": "PASS",
"detail": "Measured speed to the UPM registry: 2.83 Megabits per second"
},
{
"name": "Speedtest.net",
"description": "Test the Internet connection using Speedtest.net",
"result": "PASS",
"detail": "Measured speed to the Speedtest.net server: 43.12 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."
}
]