Celiker BAHCECI

var maxCount = 3;
$("#typeCheckboxSelect").multiselect({
includeSelectAllOption: true,
enableCaseInsensitiveFiltering: true,
numberDisplayed: 1,
maxHeight: 250,
includeSelectAllOption: false,
onChange: function(option) {
//Get selected count
var selectedCount = $("#typeCheckboxSelect").find("option:selected").length;
//If the selected count is equal to the max allowed count (3 here), then disable any unchecked boxes
if (selectedCount >= maxCount) {
$("#typeCheckboxSelect option:not(:selected)").prop('disabled', true);
$("#typeCheckboxSelect").multiselect('refresh');
alert("Only allowed to select " + maxCount + " options.");
}
//If the selected count is less than the max allowed count (3 here), then set all boxes to enabled
else {
$("#typeCheckboxSelect option:disabled").prop('disabled', false);
$("#typeCheckboxSelect").multiselect('refresh');
}
} 

ASP.Net also issues four specific cookies of its own for these features: Anonymous Authentication, Forms Authentication, Session State, and Role Management. Instances of these cookies obtained in runtime can be manipulated using the SameSite and Secure properties just like any other HttpCookie instance. 

For best resource about this topic  https://docs.microsoft.com/en-us/aspnet/samesite/system-web-samesite 

   <system.web>
    <compilation debug="false" targetFramework="4.5.2"/>
    <httpRuntime targetFramework="4.5" executionTimeout="200" maxRequestLength="12096" requestValidationMode="2.0"/>
    <globalization requestEncoding="utf-8" responseEncoding="utf-8" culture="tr-TR" uiCulture="tr-TR"/>
    <sessionState timeout="360" cookieSameSite="None"/>
    <httpCookies sameSite="None" requireSSL="false" />
    <pages maintainScrollPositionOnPostBack="true" validateRequest="false"/>
    <customErrors mode="RemoteOnly" defaultRedirect="Hata.aspx" redirectMode="ResponseRewrite"/> 
   </system.web>

  https://support.episerver.com/hc/en-us/articles/360039331931-IFrame-issues-after-Microsoft-changed-default-settings-to-SameSite-cookie-attribute

<globalization requestEncoding="utf-8" responseEncoding="utf-8" culture="tr-TR" uiCulture="tr-TR"/>

    <sessionState timeout="360" cookieSameSite="None"  cookieless="false" />

    <httpCookies sameSite="None" requireSSL="false" />

    <httpRuntime executionTimeout="240" maxRequestLength="500000"/>

    <pages maintainScrollPositionOnPostBack="true" enableEventValidation="false" viewStateEncryptionMode="Never" controlRenderingCompatibilityVersion="3.5" clientIDMode="AutoID"/>

    <webServices>

      <protocols>

        <add name="HttpGet"/>

        <add name="HttpPost"/>

      </protocols>

    </webServices>

    <compilation debug="true" targetFramework="4.5.2"/> 

1.) Go to BIOS and disable Secure Boot (for me, I found it under "Advanced Boot Options" but yours may differ so just search).
2.) Save and exit changes and your computer will reboot.
3.) Go back to BIOS if it doesn't automatically show up after restarting
4.) Find the option to Enable CSM and then once you turn that on, you would be able to select your boot options like the Hard Drive, Disc Drive and USB if applicable.