windows clean up academic project

You can create a C# desktop application. Get Temporary Files, Cookies and Internet History folder using Environment.SpecialFolder. Get files from that directories and delete it one by one. Something like this:

public void CleanComp()
{
    DirectoryInfo ICache = new DirectoryInfo(Environment.GetFolderPath(Environment.SpecialFolder.InternetCache));
    foreach (FileInfo ICFiles in ICache.GetFiles())
        ICFiles.Delete();

    DirectoryInfo IHistory = new DirectoryInfo(Environment.GetFolderPath(Environment.SpecialFolder.History));
    foreach (FileInfo IHistoryFiles in IHistory.GetFiles())
        IHistoryFiles.Delete();

    DirectoryInfo ICookies = new DirectoryInfo(Environment.GetFolderPath(Environment.SpecialFolder.Cookies));
    foreach (FileInfo ICookiesFiles in ICookies.GetFiles())
        ICookiesFiles.Delete();
}