Windows doc updates (#19054)

Co-authored-by: Ilya Mashchenko <ilya@netdata.cloud>

packaging/installer/UNINSTALL.md

@@ -26,7 +26,6 @@ curl https://get.netdata.cloud/kickstart.sh > /tmp/netdata-kickstart.sh && sh /t
 
 </details>
 
-
 **What to Expect**:
 
 In most cases, these commands will guide you through the uninstallation process and remove configuration and data files automatically.
@@ -81,3 +80,9 @@ chmod +x ./netdata-uninstaller.sh
 ## Windows
 
 To uninstall Netdata on Windows, use the standard application uninstaller in your **Settings** app or **Control Panel**.
+
+You can also use PowerShell:
+
+```powershell
+msiexec /qn /x netdata-x64.msi
+```

packaging/installer/UPDATE.md

@@ -59,10 +59,6 @@ wget -O /tmp/netdata-kickstart.sh https://get.netdata.cloud/kickstart.sh && sh /
 
 To update Netdata, [download](/packaging/windows/WINDOWS_INSTALLER.md#download-the-msi-installer) the latest installer and reinstall the Agent.
 
-> **Note**
->
-> The Windows Agent is currently under beta and only available for Nightly releases, and the installer can be found in our [nightlies repo](https://github.com/netdata/netdata-nightlies). A stable version will be released soon.
-
 ## macOS
 
 If you installed Netdata on your macOS system using Homebrew, you can explicitly request an update: