runtime: CI tests failing with WindowsCryptographicException on Windows10

https://mc.dot.net/#/user/dotnet-bot/pr~2Fjenkins~2Fdotnet~2Fcorefx~2Fmaster~2F/test~2Ffunctional~2Fcli~2F/a9913ea9b9bd68f11ca8707204b7d20a6ab98cf9/workItem/System.Net.Http.WinHttpHandler.Unit.Tests

Windows.10.Amd64.Open-x64-Debug

Unhandled Exception of Type Internal.Cryptography.CryptoThrowHelper+WindowsCryptographicException
Message :
Internal.Cryptography.CryptoThrowHelper+WindowsCryptographicException : The profile for the user is a temporary profile
Stack Trace :
   at Internal.Cryptography.Pal.CertificatePal.FilterPFXStore(Byte[] rawData, SafePasswordHandle password, PfxCertStoreFlags pfxCertStoreFlags) in D:\j\workspace\windows-TGrou---74aa877a\src\System.Security.Cryptography.X509Certificates\src\Internal\Cryptography\Pal.Windows\CertificatePal.Import.cs:line 153
   at Internal.Cryptography.Pal.CertificatePal.FromBlobOrFile(Byte[] rawData, String fileName, SafePasswordHandle password, X509KeyStorageFlags keyStorageFlags) in D:\j\workspace\windows-TGrou---74aa877a\src\System.Security.Cryptography.X509Certificates\src\Internal\Cryptography\Pal.Windows\CertificatePal.Import.cs:line 88
   at Internal.Cryptography.Pal.CertificatePal.FromBlob(Byte[] rawData, SafePasswordHandle password, X509KeyStorageFlags keyStorageFlags) in D:\j\workspace\windows-TGrou---74aa877a\src\System.Security.Cryptography.X509Certificates\src\Internal\Cryptography\Pal.Windows\CertificatePal.Import.cs:line 21
   at System.Security.Cryptography.X509Certificates.X509Certificate..ctor(Byte[] rawData, String password, X509KeyStorageFlags keyStorageFlags) in D:\j\workspace\windows-TGrou---74aa877a\src\System.Security.Cryptography.X509Certificates\src\System\Security\Cryptography\X509Certificates\X509Certificate.cs:line 81
   at System.Security.Cryptography.X509Certificates.X509Certificate..ctor(Byte[] rawData, String password) in D:\j\workspace\windows-TGrou---74aa877a\src\System.Security.Cryptography.X509Certificates\src\System\Security\Cryptography\X509Certificates\X509Certificate.cs:line 62
   at System.Security.Cryptography.X509Certificates.X509Certificate2..ctor(Byte[] rawData, String password) in D:\j\workspace\windows-TGrou---74aa877a\src\System.Security.Cryptography.X509Certificates\src\System\Security\Cryptography\X509Certificates\X509Certificate2.cs:line 51
   at System.Net.Http.WinHttpHandlerUnitTests.ClientCertificateHelper..ctor() in D:\j\workspace\windows-TGrou---74aa877a\src\System.Net.Http.WinHttpHandler\tests\UnitTests\ClientCertificateHelper.cs:line 14
   at System.Net.Http.WinHttpHandlerUnitTests.ClientCertificateScenarioTest.get_ValidClientCertificates() in D:\j\workspace\windows-TGrou---74aa877a\src\System.Net.Http.WinHttpHandler\tests\UnitTests\ClientCertificateScenarioTest.cs:line 18

cc @davidsh, @wfurt, @karelz, @danmosemsft