Pourquoi reçois-je un avertissement UAC concernant un éditeur inconnu lorsque le programme d'installation est correctement signé?

J'ai un programme d'installation du site Web de Microsoft. J'ai confirmé utiliser signtool.exe que cela vient en effet de Microsoft: 

signtool.exe verify /pa /v C:UsersyegleDownloadswsl_update_x64.msi

Verifying: C:UsersyegleDownloadswsl_update_x64.msi

Signature Index: 0 (Primary Signature)
Hash of file (sha256): D0C19BCD99DCA9D980ED7B3A55BEC7098468EE2FAB1D8A163CF4CBB5374F7F47

Signing Certificate Chain:
    Issued to: Microsoft Root Certificate Authority 2011
    Issued by: Microsoft Root Certificate Authority 2011
    Expires:   Sat Mar 22 15:13:04 2036
    SHA1 hash: 8F43288AD272F3103B6FB1428485EA3014C0BCFE

        Issued to: Microsoft Code Signing PCA 2011
        Issued by: Microsoft Root Certificate Authority 2011
        Expires:   Wed Jul 08 14:09:09 2026
        SHA1 hash: F252E794FE438E35ACE6E53762C0A234A2C52135
            Issued to: Microsoft Corporation
            Issued by: Microsoft Code Signing PCA 2011
            Expires:   Wed Mar 03 11:39:48 2021
            SHA1 hash: A5BCE29A2944105E0E25B626120264BB03499052

The signature is timestamped: Sun May 24 12:34:40 2020
Timestamp Verified by:
    Issued to: Microsoft Root Certificate Authority 2010
    Issued by: Microsoft Root Certificate Authority 2010
    Expires:   Sat Jun 23 15:04:01 2035
    SHA1 hash: 3B1EFD3A66EA28B16697394703A72CA340A05BD5

        Issued to: Microsoft Time-Stamp PCA 2010
        Issued by: Microsoft Root Certificate Authority 2010
        Expires:   Tue Jul 01 14:46:55 2025
        SHA1 hash: 2AA752FE64C49ABE82913C463529CF10FF2F04EE

            Issued to: Microsoft Time-Stamp Service
            Issued by: Microsoft Time-Stamp PCA 2010
            Expires:   Tue Mar 16 18:15:00 2021
            SHA1 hash: 313D4B1BF280123D17B222FD9FB9B1997D5A7D9B


Successfully verified: C:UsersyegleDownloadswsl_update_x64.msi

Number of files successfully Verified: 1
Number of warnings: 0
Number of errors: 0

Mais l'exécution de ce programme d'installation entraîne un avertissement UAC jaune indiquant que l'exécutable provient d'un éditeur inconnu:

yellow UAC warning

J'ai essayé d'utiliser dsim.exe et sfc.exe pour essayer de réparer mon système au cas où c'en serait la cause, mais les deux outils reviennent propres. Je n'ai plus d'indice : -(

demandé sur