I have a lenovo g505 with windows 8. I just downloaded and installed the latest version of Ubuntu(18.04 LTS) by following all the procedures of dual boot.
Now when I want to go to windows, after restarting my PC it shows following options
1.ubuntu
2.advanced options for ubuntu
3.windows boot manager
4.system setup.
when I click on the windows boot manager I get an everlasting purple screen. I checked in the files and found all of my windows files are present in windows 8 disc, yet I am unable to go into windows 8, so please suggest a solution.