Ubuntu 16.04 does not shutdown from shutdown menu takes long time.

Do you have the latest BIOS?
Is the OS fully updated?
When it is shutting down if you press ESC, you should see the messages on screen.

Do you see any useful details?

The OS is fully updated.
I have latest BIOS.

ganesh@Ganesh-PC:~$ sudo dmidecode -s bios-version
[sudo] password for ganesh:
A13
ganesh@Ganesh-PC:~$ sudo dmidecode -s system-serial-number
8JSKB32
ganesh@Ganesh-PC:~$ sudo getSystemId
Libsmbios version: 2.2.28
Product Name: Inspiron 3542
Vendor: Dell Inc.
BIOS Version: A13
System ID: 0x0651
Service Tag: 8JSKB32
Express Service Code: 18611092766
Asset Tag:
Property Ownership Tag: DSCI
ganesh@Ganesh-PC:~$ sudo biosdecode
# biosdecode 2.12
ACPI 2.0 present.
 OEM Identifier: DELL
 RSD Table 32-bit Address: 0xDABE3028
 XSD Table 64-bit Address: 0x00000000DABE3090
SMBIOS 2.8 present.
 Structure Table Length: 2098 bytes
 Structure Table Address: 0x000EC720
 Number Of Structures: 45
 Maximum Structure Size: 253 bytes
PNP BIOS 1.0 present.
 Event Notification: Not Supported
 Real Mode 16-bit Code Address: F000:CB26
 Real Mode 16-bit Data Address: F000:0000
 16-bit Protected Mode Code Address: 0x000FCB4E
 16-bit Protected Mode Data Address: 0x000F0000
PCI Interrupt Routing 1.0 present.
 Router ID: 00:1f.0
 Exclusive IRQs: None
 Compatible Router: 8086:27b8
 Slot Entry 1: ID 00:1f, on-board
 Slot Entry 2: ID 00:14, on-board
 Slot Entry 3: ID 00:1d, on-board
 Slot Entry 4: ID 00:1a, on-board
 Slot Entry 5: ID 00:1b, on-board
 Slot Entry 6: ID 00:19, on-board
 Slot Entry 7: ID 00:16, on-board
 Slot Entry 8: ID 00:1c, on-board
 Slot Entry 9: ID 04:00, slot number 33
 Slot Entry 10: ID 06:00, slot number 8
 Slot Entry 11: ID 00:15, on-board
 Slot Entry 12: ID 00:17, on-board
 Slot Entry 13: ID 00:13, on-board
 Slot Entry 14: ID 00:01, on-board
 Slot Entry 15: ID 00:03, on-board
 Slot Entry 16: ID 00:04, on-board
 Slot Entry 17: ID 00:02, on-board
 Slot Entry 18: ID 07:00, slot number 9
ganesh@Ganesh-PC:~$ sudo dmidecode --type bios
# dmidecode 2.12
SMBIOS 2.8 present.

Handle 0x0000, DMI type 0, 24 bytes
BIOS Information
 Vendor: Dell Inc.
 Version: A13
 Release Date: 01/30/2018
 Address: 0xF0000
 Runtime Size: 64 kB
 ROM Size: 2048 kB
 Characteristics:
  MCA is supported
  PCI is supported
  BIOS is upgradeable
  BIOS shadowing is allowed
  ESCD support is available
  Boot from CD is supported
  Selectable boot is supported
  BIOS ROM is socketed
  EDD is supported
  5.25"/1.2 MB floppy services are supported (int 13h)
  3.5"/720 kB floppy services are supported (int 13h)
  3.5"/2.88 MB floppy services are supported (int 13h)
  Print screen service is supported (int 5h)
  8042 keyboard services are supported (int 9h)
  Serial services are supported (int 14h)
  Printer services are supported (int 17h)
  CGA/mono video services are supported (int 10h)
  ACPI is supported
  USB legacy is supported
  ATAPI Zip drive boot is supported
  BIOS boot specification is supported
  Targeted content distribution is supported
  UEFI is supported
 BIOS Revision: 65.13

Handle 0x002E, DMI type 13, 22 bytes
BIOS Language Information
 Language Description Format: Long
 Installable Languages: 1
  en|US|iso8859-1
 Currently Installed Language: en|US|iso8859-1

ganesh@Ganesh-PC:~$ sudo lshw
ganesh-pc
    description: Portable Computer
    product: Inspiron 3542 (0651)
    vendor: Dell Inc.
    version: Not Specified
    serial: 8JSKB32
    width: 64 bits
    capabilities: smbios-2.8 dmi-2.7 vsyscall32
    configuration: boot=normal chassis=portable sku=0651 uuid=44454C4C-4A00-1053-804B-B8C04F423332
  *-core
       description: Motherboard
       product: 0KHNVP
       vendor: Dell Inc.
       physical id: 0
       version: A13
       serial: .8JSKB32.CN7620655100RW.
       slot: To Be Filled By O.E.M.
     *-firmware
          description: BIOS
          vendor: Dell Inc.
          physical id: 0
          version: A13
          date: 01/30/2018
          size: 64KiB
          capacity: 1984KiB
          capabilities: mca pci upgrade shadowing escd cdboot bootselect socketedrom edd int13floppy1200 int13floppy720 int13floppy2880 int5printscreen int9keyboard int14serial int17printer int10video acpi usb zipboot biosbootspecification uefi
     *-memory:0 UNCLAIMED
          physical id: 1
        *-bank UNCLAIMED
             description: SODIMM DDR3 Synchronous 1600 MHz (0.6 ns)
             product: HMT451S6BFR8A-PB
             vendor: Hynix/Hyundai
             physical id: 0
             serial: 0390422D
             slot: DIMM_A
             size: 4GiB
             width: 64 bits
             clock: 1600MHz (0.6ns)
     *-memory:1
          description: System Memory
          physical id: 7
          slot: System board or motherboard
     *-cache:0
          description: L3 cache
          physical id: 6
          slot: CPU Internal L3
          size: 3MiB
          capacity: 3MiB
          capabilities: internal write-back unified
     *-cache:1
          description: L2 cache
          physical id: 5
          slot: CPU Internal L2
          size: 512KiB
          capacity: 512KiB
          capabilities: internal write-back unified
     *-cache:2
          description: L1 cache
          physical id: 4
          slot: CPU Internal L1
          size: 128KiB
          capacity: 128KiB
          capabilities: internal write-back
     *-cpu
          description: CPU
          product: Intel(R) Core(TM) i3-4005U CPU @ 1.70GHz
          vendor: Intel Corp.
          physical id: 24
          bus info: cpu@0
          version: Intel(R) Core(TM) i3-4005U CPU @ 1.70GHz
          slot: SOCKET 0
          size: 1100MHz
          capacity: 3800MHz
          width: 64 bits
          clock: 100MHz
          capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 fma cx16 xtpr pdcm pcid sse4_1 sse4_2 movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid cpufreq
          configuration: cores=2 enabledcores=2 threads=4
     *-memory:2 UNCLAIMED
          physical id: 2
     *-memory:3 UNCLAIMED
          physical id: 3
     *-pci
          description: Host bridge
          product: Haswell-ULT DRAM Controller
          vendor: Intel Corporation
          physical id: 100
          bus info: pci@0000:00:00.0
          version: 0b
          width: 32 bits
          clock: 33MHz
        *-display
             description: VGA compatible controller
             product: Haswell-ULT Integrated Graphics Controller
             vendor: Intel Corporation
             physical id: 2
             bus info: pci@0000:00:02.0
             version: 0b
             width: 64 bits
             clock: 33MHz
             capabilities: msi pm vga_controller bus_master cap_list rom
             configuration: driver=i915 latency=0
             resources: irq:60 memory:f7800000-f7bfffff memory:e0000000-efffffff ioport:f000(size=64)
        *-multimedia:0
             description: Audio device
             product: Haswell-ULT HD Audio Controller
             vendor: Intel Corporation
             physical id: 3
             bus info: pci@0000:00:03.0
             version: 0b
             width: 64 bits
             clock: 33MHz
             capabilities: pm msi pciexpress bus_master cap_list
             configuration: driver=snd_hda_intel latency=0
             resources: irq:62 memory:f7e14000-f7e17fff
        *-usb:0
             description: USB controller
             product: 8 Series USB xHCI HC
             vendor: Intel Corporation
             physical id: 14
             bus info: pci@0000:00:14.0
             version: 04
             width: 64 bits
             clock: 33MHz
             capabilities: pm msi xhci bus_master cap_list
             configuration: driver=xhci_hcd latency=0
             resources: irq:56 memory:f7e00000-f7e0ffff
        *-communication
             description: Communication controller
             product: 8 Series HECI #0
             vendor: Intel Corporation
             physical id: 16
             bus info: pci@0000:00:16.0
             version: 04
             width: 64 bits
             clock: 33MHz
             capabilities: pm msi bus_master cap_list
             configuration: driver=mei_me latency=0
             resources: irq:59 memory:f7e1d000-f7e1d01f
        *-multimedia:1
             description: Audio device
             product: 8 Series HD Audio Controller
             vendor: Intel Corporation
             physical id: 1b
             bus info: pci@0000:00:1b.0
             version: 04
             width: 64 bits
             clock: 33MHz
             capabilities: pm msi pciexpress bus_master cap_list
             configuration: driver=snd_hda_intel latency=0
             resources: irq:61 memory:f7e10000-f7e13fff
        *-pci:0
             description: PCI bridge
             product: 8 Series PCI Express Root Port 1
             vendor: Intel Corporation
             physical id: 1c
             bus info: pci@0000:00:1c.0
             version: e4
             width: 32 bits
             clock: 33MHz
             capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
             configuration: driver=pcieport
             resources: irq:16
        *-pci:1
             description: PCI bridge
             product: 8 Series PCI Express Root Port 3
             vendor: Intel Corporation
             physical id: 1c.2
             bus info: pci@0000:00:1c.2
             version: e4
             width: 32 bits
             clock: 33MHz
             capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
             configuration: driver=pcieport
             resources: irq:18 memory:f7d00000-f7dfffff
           *-network
                description: Wireless interface
                product: BCM43142 802.11b/g/n
                vendor: Broadcom Corporation
                physical id: 0
                bus info: pci@0000:06:00.0
                logical name: wlan0
                version: 01
                serial: ac:d1:b8:d3:91:7b
                width: 64 bits
                clock: 33MHz
                capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
                configuration: broadcast=yes driver=wl0 driverversion=6.30.223.271 (r587334) ip=192.168.0.104 latency=0 multicast=yes wireless=IEEE 802.11abg
                resources: irq:18 memory:f7d00000-f7d07fff
        *-pci:2
             description: PCI bridge
             product: 8 Series PCI Express Root Port 4
             vendor: Intel Corporation
             physical id: 1c.3
             bus info: pci@0000:00:1c.3
             version: e4
             width: 32 bits
             clock: 33MHz
             capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
             configuration: driver=pcieport
             resources: irq:19 ioport:e000(size=4096) memory:f7c00000-f7cfffff ioport:f0000000(size=1048576)
           *-network
                description: Ethernet interface
                product: RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller
                vendor: Realtek Semiconductor Co., Ltd.
                physical id: 0
                bus info: pci@0000:07:00.0
                logical name: eth0
                version: 07
                serial: 20:47:47:0a:d3:f2
                size: 10Mbit/s
                capacity: 100Mbit/s
                width: 64 bits
                clock: 33MHz
                capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
                configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8106e-1_0.0.1 06/29/12 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
                resources: irq:57 ioport:e000(size=256) memory:f7c00000-f7c00fff memory:f0000000-f0003fff
        *-usb:1
             description: USB controller
             product: 8 Series USB EHCI #1
             vendor: Intel Corporation
             physical id: 1d
             bus info: pci@0000:00:1d.0
             version: 04
             width: 32 bits
             clock: 33MHz
             capabilities: pm debug ehci bus_master cap_list
             configuration: driver=ehci-pci latency=0
             resources: irq:23 memory:f7e1b000-f7e1b3ff
        *-isa
             description: ISA bridge
             product: 8 Series LPC Controller
             vendor: Intel Corporation
             physical id: 1f
             bus info: pci@0000:00:1f.0
             version: 04
             width: 32 bits
             clock: 33MHz
             capabilities: isa bus_master cap_list
             configuration: driver=lpc_ich latency=0
             resources: irq:0
        *-storage
             description: SATA controller
             product: 8 Series SATA Controller 1 [AHCI mode]
             vendor: Intel Corporation
             physical id: 1f.2
             bus info: pci@0000:00:1f.2
             version: 04
             width: 32 bits
             clock: 66MHz
             capabilities: storage msi pm ahci_1.0 bus_master cap_list
             configuration: driver=ahci latency=0
             resources: irq:58 ioport:f0b0(size=8) ioport:f0a0(size=4) ioport:f090(size=8) ioport:f080(size=4) ioport:f060(size=32) memory:f7e1a000-f7e1a7ff
        *-serial UNCLAIMED
             description: SMBus
             product: 8 Series SMBus Controller
             vendor: Intel Corporation
             physical id: 1f.3
             bus info: pci@0000:00:1f.3
             version: 04
             width: 64 bits
             clock: 33MHz
             configuration: latency=0
             resources: memory:f7e19000-f7e190ff ioport:f040(size=32)
     *-scsi:0
          physical id: 8
          logical name: scsi0
          capabilities: emulated
        *-disk
             description: ATA Disk
             product: WDC WD10JPVX-75J
             vendor: Western Digital
             physical id: 0.0.0
             bus info: scsi@0:0.0.0
             logical name: /dev/sda
             version: 01.0
             serial: WX21A150CR48
             size: 931GiB (1TB)
             capabilities: partitioned partitioned:dos
             configuration: ansiversion=5 sectorsize=4096 signature=4facec4d
           *-volume:0
                description: Windows NTFS volume
                physical id: 1
                bus info: scsi@0:0.0.0,1
                logical name: /dev/sda1
                version: 3.1
                serial: e259-7be0
                size: 98MiB
                capacity: 100MiB
                capabilities: primary bootable ntfs initialized
                configuration: clustersize=4096 created=2016-06-10 04:49:19 filesystem=ntfs label=System Reserved state=clean
           *-volume:1
                description: Windows NTFS volume
                physical id: 2
                bus info: scsi@0:0.0.0,2
                logical name: /dev/sda2
                version: 3.1
                serial: 60d140e9-d8e2-d644-a97d-f080fd599094
                size: 100GiB
                capacity: 100GiB
                capabilities: primary ntfs initialized
                configuration: clustersize=4096 created=2016-06-10 04:52:12 filesystem=ntfs label=C modified_by_chkdsk=true mounted_on_nt4=true resize_log_file=true state=dirty upgrade_on_mount=true
           *-volume:2
                description: Windows NTFS volume
                physical id: 3
                bus info: scsi@0:0.0.0,3
                logical name: /dev/sda3
                version: 3.1
                serial: b28b0db9-f766-614e-b703-238d21805826
                size: 700GiB
                capacity: 700GiB
                capabilities: primary ntfs initialized
                configuration: clustersize=4096 created=2016-06-15 19:42:23 filesystem=ntfs label=D modified_by_chkdsk=true mounted_on_nt4=true resize_log_file=true state=dirty upgrade_on_mount=true
           *-volume:3
                description: Extended partition
                physical id: 4
                bus info: scsi@0:0.0.0,4
                logical name: /dev/sda4
                size: 131GiB
                capacity: 131GiB
                capabilities: primary extended partitioned partitioned:extended
              *-logicalvolume:0
                   description: Linux filesystem partition
                   physical id: 5
                   logical name: /dev/sda5
                   logical name: /
                   capacity: 127GiB
                   configuration: mount.fstype=ext4 mount.options=rw,relatime,errors=remount-ro,data=ordered state=mounted
              *-logicalvolume:1
                   description: Linux swap / Solaris partition
                   physical id: 6
                   logical name: /dev/sda6
                   capacity: 3999MiB
                   capabilities: nofs
     *-scsi:1
          physical id: 9
          logical name: scsi1
          capabilities: emulated
        *-cdrom
             description: DVD-RAM writer
             product: DVD+-RW SU-208GB
             vendor: TSSTcorp
             physical id: 0.0.0
             bus info: scsi@1:0.0.0
             logical name: /dev/cdrom
             logical name: /dev/sr0
             version: D100
             capabilities: removable audio cd-r cd-rw dvd dvd-r dvd-ram
             configuration: ansiversion=5 status=nodisc
     *-scsi:2
          physical id: a
          bus info: usb@1:1.8
          logical name: scsi2
          capabilities: emulated scsi-host
          configuration: driver=rts5139
        *-disk
             description: SCSI Disk
             product: xD/SD/M.S.
             vendor: Generic-
             physical id: 0.0.0
             bus info: scsi@2:0.0.0
             logical name: /dev/sdb
             version: 1.00
             serial: 3
             capabilities: removable
             configuration: sectorsize=512
           *-medium
                physical id: 0
                logical name: /dev/sdb
  *-battery
       description: Lithium Ion Battery
       product: DELL FW1MN31
       vendor: SMP-SDI2.8
       physical id: 1
       serial: 1152
       slot: Sys. Battery Bay
       capacity: 28000mWh
       configuration: voltage=14.8V
ganesh@Ganesh-PC:~$

This question was expired because it remained in the 'Open' state without activity for the last 15 days.

Thanks For the help.I have resolve the issue by updating BIOS .