reset internet explorer settings with registry

#!/usr/bin/env python
# _*_ coding: utf-8 _*_
# @Time     : 2017/10/19 14:38
# @Author   : otfsenter
# @File     : operation_registry.py
import _winreg


def delete_sub_key(key0, key1, key2=""):
    if key2 == "":
        current_key = key1
    else:
        current_key = key1 + "\" + key2

    open_key = _winreg.OpenKey(key0, current_key, 0, _winreg.KEY_ALL_ACCESS)
    info_key = _winreg.QueryInfoKey(open_key)
    # print 'info_key: ', info_key
    for x in range(0, info_key[0]):
        # NOTE:: This code is to delete the key and all subkeys.
        #  If you just want to walk through them, then
        #  you should pass x to EnumKey.    sub_key = _winreg.EnumKey(open_key, x)
        #  Deleting the sub_key will change the SubKey count used by EnumKey.
        #  We must always pass 0 to EnumKey so we
        #  always get back the new first SubKey.

        sub_key = _winreg.EnumKey(open_key, 0)
        print 'sub_key: ', sub_key
        try:
            _winreg.DeleteKey(open_key, sub_key)
            print "Removed %s\%s " % (current_key, sub_key)
        except:
            delete_sub_key(key0, current_key,   sub_key)

            # no extra delete here since each call
            # to deleteSubkey will try to delete itself when its empty.

    _winreg.DeleteKey(open_key, "")
    open_key.Close()
    print "Removed %s" % current_key
    return

# delete_sub_key(_winreg.HKEY_CURRENT_USER, "Software\Microsoft", "Internet Explorer")
delete_sub_key(_winreg.HKEY_CURRENT_USER, "Software\Microsoft\Internet Explorer")
delete_sub_key(_winreg.HKEY_CURRENT_USER, "Software\Microsoft\Windows\CurrentVersion\Internet Settings")