taskbar frozen, killing explorer.exe not working

Sylveon Fetish

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On my Dell Optiplex 780, my taskbar is completely frozen. I cannot click on any icons on it or do anything with it. I killed the explorer.exe process but the taskbar did not go away like it usually does when one kills explorer.exe. in fact, my entire desktop along with icons and any window are all still showing when I killed explorer.exe

I opened Firefox on that computer from the desktop icon because I cannot with the taskbar icon, and as soon as it was all the way up, it froze just like the taskbar. I cannot click anything in Firefox nor can I close it. Task manager also freezes as soon as it opens. And I cannot do anything with that either.

I had to post this on a different computer because of all this.

Does anybody know what the problem could be?
 

My Computer My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
Dell Optiplex 780
OS
Windows 7 Ultimate 64-bit SP1
CPU
Intel Core 2 Duo E8400 @ 3.00GHz
Motherboard
Dell Inc. 03NVJ6 (CPU)
Memory
8.00GB Single-Channel DDR3 @ 531MHz (7-7-7-20)
Graphics Card(s)
Intel Q45/Q43 Express Chipset (Dell)
Sound Card
SoundMAX Integrated Digital High Definition Audio
Monitor(s) Displays
Viore
Screen Resolution
1920x1080
Hard Drives
149GB Seagate ST3160318AS (SATA)
Keyboard
Dell
Mouse
Dell
Internet Speed
up to 7 Mbps (average 3.2 Mbps)
Antivirus
AVG IS
Browser
Firefox, Chrome
Open a CMD window and type:
chkdsk c: /f
schedule for next boot.
Reboot. As the disk is being checked, pay attention to the results.

After reboot, open a CMD window and type:
sfc /scannow
Reboot.

Repeat it (sfc /scannow ) 3 times.
 

My Computers My Computers

System One System Two

  • Computer type
    PC/Desktop
    Computer Manufacturer/Model Number
    custom build
    OS
    Windows 7 HP 64
    CPU
    i5 6600K - 800MHz to 4200MHz
    Motherboard
    GA-Z170-HD3P
    Memory
    4+4G GSkill DDR4 3000
    Graphics Card(s)
    IG - Intel 530
    Monitor(s) Displays
    Samsung 226BW
    Screen Resolution
    1680x1050
    Hard Drives
    (1) -1 SM951 – 128GB M.2 AHCI PCIe SSD drive for Windows 7 and Lubuntu
    (2) -1 WD SATA 3 - 1T for Data
    (3) -1 WD SATA 3 - 1T for backup
    PSU
    Thermaltake 450W TR2 gold
    Keyboard
    Old and good Chicony mechanical keyboard
    Mouse
    Logitech mX performance - 9 buttons (had to disable some)
    Internet Speed
    500Mb/s
    Browser
    Firefox 64
    Other Info
    TinyWall firewall
  • Computer type
    Laptop
    System Manufacturer/Model Number
    Asus Q550LF
    OS
    Windows 7 Pro
    CPU
    i7-4500U 800MHz to 3.0GHz
    Motherboard
    Asus Q550LF
    Memory
    (4+4)G DDR3 1600
    Graphics Card(s)
    IG intel 4400 + NVIDIA GeForce GT 745M
    Sound Card
    Realtek
    Monitor(s) Displays
    LG Display LP156WF4-SPH1
    Screen Resolution
    1920 x 1080
    Hard Drives
    BX500 120G SSD for Windows and programs +
    1T HDD for data
    Internet Speed
    500 Mb/s
    Browser
    Firefox
    Other Info
    TinyWall firewall
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