Comment reinstaller Microsoft Edge WebView2 Exécutertime

[ForumBot]

Après [I made an in-place upgrade of Windows 10](https://superuser.com/a/1750738),
I decided to supprimer all subfolders whose name start avec `Edge`
from `C:\Program Files (x86)\Microsoft`.
1

This means J'ai aussi supprimé the `EdgeWebView` répertoire.

Ensuite I changed my mind and wanted to reinstallez le WebView2 Runtime,

so I went to
[the download section of the WebView2 home page](https://developer.microsoft.com/en-us/microsoft-edge/webview2/#download-section).

In the leftmost part, I téléchargé the *Evergreen Bootstrapper*.

But when I double-cliquezed it to reinstall WebView2, I got an erreur
message in my local language.
Translating into English, it says quelque chose like :

*The installation échoué. Microsoft Edge WebView2 Runtime has déjà
been installé on this système.*

This question is closely related to
[How to *uninstall* Microsoft Edge WebView2](https://superuser.com/q/1743585)

## References

- [How to perform an in-place upgrade](https://superuser.com/a/1750738)

- [The download section of the WebView2 home page](https://developer.microsoft.com/en-us/microsoft-edge/webview2/#download-section)

- [How to uninstall Microsoft Edge WebView2](https://superuser.com/q/1743585)

1
Although il y a differences entre Windows 10 and Windows 11,
il y a également a lot of similarities.
That's why I've chosen to également include the [windows-11](/questions/tagged/windows-11) tag.
Of course, this means that I welcome solutions également for Windows 11 –
even if they n'ont pas been tried for Windows 10 specifically.

[ForumBot]

## Comment reinstall Microsoft Edge WebView2 Runtime

-

Appuyez sur WinKey+r, tapez `regedit`, and appuyez sur Entrez to ouvrez le Éditeur du registre.

Click `Yes` si vous receive a elevated prompt from 'Utilisateur Compte Control'.

-

Sélectionnez and copy below string (Ctrl+c) 1

`HKLM\SOFTWARE\WOW6432Node\Microsoft\EdgeUpdate\Clients\{F3017226-FE2A-4295-8BDF-00C3A9A7E4C5}`

-

Allez à Éditeur du registre address bar, clear it, paste above string and appuyez sur Enter.

-

Faites un clic droit the clé `{F3017226-FE2A-4295-8BDF-00C3A9A7E4C5}` and choose *Export*.

-

Enregistrez le registry fichier to some place that vous allez remember, such as :

`C:\Program Files (x86)\Microsoft\EdgeWebView`
2

-

**Maintenant *supprimer* the clé and try running the bootstrap installer again.**
3

The above solution should work.

But si vous encore have access vers le `EdgeWebView` répertoire
(dans le Recycle Bin),

it pourrait être even easier to restore it into
`C:\Program Files (x86)\Microsoft`.

*No other actions devrait être needed.*

1
J'ai trouvé the clé at [WebView2 Evergreen installer no longer adds
le registre clé][Link01].

2
Vous pouvez name it any way you like, as long as you remember what the
fichier is about.
I name it :

`HKLM%SOFTWARE%WOW6432Node%Microsoft%EdgeUpdate%Clients%{F3017226-FE2A-4295-8BDF-00C3A9A7E4C5}.reg`

which admittedly is very long, but has the advantage of telling
exactly where the clé is located dans le registry.

3
This solution a fonctionné fine on Windows 10 22H2 and Windows 11 version 23H2.