Windows 8 and 8.1 Forums

multiple instances of explorer.exe, high cpu usage

  1. #1

    Palm Coast FLorida
    Posts : 370
    Windows 8 Pro ($39.99 upgrade)

    multiple instances of explorer.exe, high cpu usage

    Ever since I have installed windows 8.1 on one of my computers I have been having problems with multiple instances of windows explorer.exe running, some instances using around 35% of my cpu.

    Computer gets so slow sometimes that I have to go into task manager and close down all the instances of explorer.exe especially the ones using up to 35% of my cpu.

    I run clean computers, anti-virus, malware detection etc, never finds anything.

    I have one theory, I have installed a registry edit so one can copy and move files by right clicking in explorer. could this edit be causing my problems?

    any help would be appreciated.


      My System SpecsSystem Spec

  2. #2

    well, just from a troubleshooting standpoint and logic by subtracting one factor at a time, it is definitely something you installed as I just pointed out in another posting here, - Windows freshly installed out of the box does not have these kinds of symptoms and problems.. so i'm guessing it is something installed..

    time for clean boot and disable startup/services related to that program and others for troubleshooting to see what it is..
      My System SpecsSystem Spec

  3. #3

    Austin TX metro area
    Posts : 518
    Windows 7 Pro 64bit [MS blue-disk set]

    Several times a day, I have two or more explorer.EXEs running a controlled amok within my Windows 7. I miss the old File Manager! Anyway, I'm often copying or moving files from one place to another. I am careful to close any un-needed explorer sessions, lest I be smitten with the sllloooww-down curse. Brooksndun makes a great point -- see what doohickies you have REGistered into explorer [right-click menu], maybe time to clean out some things. Normally, the copy to and move to right-clicks are not a problem, too many thingies, too many open explorer sessions -- often can and will cause problems.
      My System SpecsSystem Spec

multiple instances of explorer.exe, high cpu usage

Similar Threads
Thread Forum
High RAM Usage (Spotify high)
First off I have 8GB of RAM, and I get notifications all the time that my RAM is high, and it wants to close programs. The main program that worries me the most is Spotify is using 900MB of RAM when playing and 500MB when not playing. Why is this so high? The games I play are not even that high....
Performance & Maintenance
Multiple instances of one printer
Has anyone encountered this issue? I installed an HP Office Jet J4580 in Windows 8.1. It works fine. However when I go to 'Devices and Printers' and right click on that printer (it is the only printer I installed), it shows a drop down box with three Office Jet J4500 Series. I can select any...
Drivers & Hardware
High CPU usage
Hey, I just installed Windows 8 x64 pro and i have weirdly high cpu usage with basically nothing open. My windows 8 is up to date, with the exception of 8.1.
Performance & Maintenance
Really high CPU usage
30889 I get really high cpu usage just by using the internet 33%+ and hangs the entire PC when I even try World of Warcraft as CPU reaches 100% thing is it only started today. The highest Process is service host local system (network restricted) (11) My specs are Win 8.1 Pro 64,...
Performance & Maintenance
Multiple instances of programs
I have notices that there are multiple instances of certain programs that are loaded but NOT running such as Internet Explorer and Chrome. I usually find them, via Task Manager, when I attempt to start the program and it doesn't start. After I end the non running tasks the program runs as normal....
Performance & Maintenance
Some help in a high HDD usage?
Hi! I've installed Windows 8 Release Preview x64 recently, but i'm noticing that my HDD is almost always using from 0% to 100% every 5 seconds (approximately), this is very annoying cause it makes a little system freeze every time... Can someone give me a tip? Thanks in advance...
Performance & Maintenance
High memory usage
hello all, I found my PC really slow after a while of use, checking Task Manager found that my total percent of memory was at 99% while playing BF3, funny thing today also 2 friends had exactly the same problem, friend's PC system X79 SSD RAID nvidia 670 32gb, my other friend's PC intel 1356 HHD...
Performance & Maintenance

Eight Forums Android App Eight Forums IOS App Follow us on Facebook