Hey Laksha, before you start installing Jenkins on windows, have a look at the pre-requisites
https://www.edureka.co/community/39569/requisites-need-keep-mind-while-installing-jenkins-windows
Now follow these steps to install Jenkins:
Go to https://jenkins.io/download/ and select the platform, in our case, it'll be Windows
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Download it and then on your local system, go to downloads and unzip the file
You'll get an unzipped file - jenkins.msi, double-click on it and run the installer.
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In the installer, click on next
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Select the location where you want to install Jenkins and then click next
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Click on the Install Button
Once the installation is completed, click on finish
During the installation you might get a popup asking you to reboot the system for complete set up of Jenkins, just click on yes
Now Jenkins is installed, you can access it from http://localhost:8080 and page will look something like this, asking you to unlock Jenkins
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Initial Administrator password will be located where your Jenkins is installed. You should see a file called secrets/initialAdminPassword
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Copy the password and paste in on the Unlock Jenkins page and click on Continue Button.
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