Windows 8 and 8.1 Forums


System = 100% Disk use, I can't delete Windows.old etc.

  1. #1


    Posts : 9
    Windows 8

    System = 100% Disk use, I can't delete Windows.old etc.


    I upgraded (not clean install) my laptop from Windows 7 to Windows 8 and now I have three problems. The first is that I can't delete the Windows.old folder. The second is that Disk use is 100% for an hour or so after startup and random spikes causing everything to respond slowly or stop responding. And last is that there are duplicate processes in task manager.

    1. Can't delete Windows.old
    I was trying to fix the performance issues, so I decided to do a disk clean up (with system files and everything checked) and had the drive defragmented. It made booting to the OS and shutting down much faster, but my second problem still persists.

    I decided to uninstall unrelated programs, and tried disk cleanup again. This time though, I got stuck in Previous Windows Installation. It's weird since it was only about 16 Mb. I cancelled it since the progress bar showed no progress after 30 minutes or so. I Tried Step Two from this tutorial on deleting Windows.old, but I just got "The request could not be performed because of an IO device error" and something like insufficient rights errors. Also, every time something tries to access the Windows.old folder or any of its files, the disk usage spikes to 100% (with mostly the System process) and everything I do slows down and stops responding (same in safe mode boot). Is this a problem on my hard drive? What can I do to fix this?

    2. 100% Disk use by System
    I noticed that at startup the disk usage is 100%, I checked and I saw that it was the System process. I'm not sure, but I think this causes the slow response and no response from my laptop. I tried restarting in safe mode. It was still a bit slow (but much faster) and the random lags are still there (but tolerable) but I chan't check if it was still the disk use problem since the disk is not part of task manager in safe mode. Why is the system process eating up disk use? Is there a way to fix this?

    3. Duplicate processes
    I checked the details and there were duplicate processes. I saw 3 dllhost process 1 by the system and one by my user account, 7 from a vaio tool, all were from my user account (there was only 1 before the upgrade), and other duplicates. Why are there duplicates? Do I have to reinstall all the drivers and programs to fix this?

    Sorry for the long explanations, I hope someone could help. Thanks!

      My System SpecsSystem Spec

  2. #2


    Sloe Deth, Californicatia
    Posts : 3,908
    Windows 8 Pro with Media Center/Windows 7


    You try shutting down the excess processes with Task Manager? Something is starting dupe processes. Did you migrate your Local account into your Skydrive account? You can do that under "PC Settings" (Pic Below) Try that, see if it consolidates the processes. Sounds like it is acting like there are more than one users logged in at once.

    Click image for larger version
      My System SpecsSystem Spec

  3. #3


    Posts : 9
    Windows 8


    Quote Originally Posted by XweAponX View Post
    You try shutting down the excess processes with Task Manager? Something is starting dupe processes. Did you migrate your Local account into your Skydrive account? You can do that under "PC Settings" (Pic Below) Try that, see if it consolidates the processes. Sounds like it is acting like there are more than one users logged in at once.

    Click image for larger version
    Thanks, I did try to end the duplicate processes but nothing significant happened. I guess the duplicate processess aren't really affecting the performance that much, but I'm still curious why this happens. I want to get rid of it before it does something significant.

    I just have 1 account, I don't have a skydrive account connected to my system. The duplicate processes are either owned by my Admin account (this is the only account I have on my laptop) or by the system.
      My System SpecsSystem Spec

  4. #4


    Sloe Deth, Californicatia
    Posts : 3,908
    Windows 8 Pro with Media Center/Windows 7


    Do it, make a Skydrive account and merge your local account into it, It's how Windows 8 was designed to work.
      My System SpecsSystem Spec

  5. #5


    Posts : 22,582
    64-bit Windows 10


    Quote Originally Posted by XweAponX View Post
    Do it, make a Skydrive account and merge your local account into it, It's how Windows 8 was designed to work.
    Hello Jon,

    Just for a FYI, it's called a "Microsoft account" instead of "SkyDrive account". They are two different things.


    Microsoft Account - Switch to in Windows 8

    https://www.eightforums.com/tutorials...ndows-8-a.html
    https://www.eightforums.com/tutorials...l-windows.html
      My System SpecsSystem Spec

  6. #6


    india
    Posts : 101
    Windows 8 pro with WMC x86 & windows Blue preview x86 with Windows 7 Ultimate SP1


    Quote Originally Posted by acer3 View Post
    I upgraded (not clean install) my laptop from Windows 7 to Windows 8 and now I have three problems. The first is that I can't delete the Windows.old folder. The second is that Disk use is 100% for an hour or so after startup and random spikes causing everything to respond slowly or stop responding. And last is that there are duplicate processes in task manager.

    1. Can't delete Windows.old
    I was trying to fix the performance issues, so I decided to do a disk clean up (with system files and everything checked) and had the drive defragmented. It made booting to the OS and shutting down much faster, but my second problem still persists.

    I decided to uninstall unrelated programs, and tried disk cleanup again. This time though, I got stuck in Previous Windows Installation. It's weird since it was only about 16 Mb. I cancelled it since the progress bar showed no progress after 30 minutes or so. I Tried Step Two from this tutorial on deleting Windows.old, but I just got "The request could not be performed because of an IO device error" and something like insufficient rights errors. Also, every time something tries to access the Windows.old folder or any of its files, the disk usage spikes to 100% (with mostly the System process) and everything I do slows down and stops responding (same in safe mode boot). Is this a problem on my hard drive? What can I do to fix this?

    2. 100% Disk use by System
    I noticed that at startup the disk usage is 100%, I checked and I saw that it was the System process. I'm not sure, but I think this causes the slow response and no response from my laptop. I tried restarting in safe mode. It was still a bit slow (but much faster) and the random lags are still there (but tolerable) but I chan't check if it was still the disk use problem since the disk is not part of task manager in safe mode. Why is the system process eating up disk use? Is there a way to fix this?

    3. Duplicate processes
    I checked the details and there were duplicate processes. I saw 3 dllhost process 1 by the system and one by my user account, 7 from a vaio tool, all were from my user account (there was only 1 before the upgrade), and other duplicates. Why are there duplicates? Do I have to reinstall all the drivers and programs to fix this?

    Sorry for the long explanations, I hope someone could help. Thanks!

    do as they say.... it'd help a lot... and the problems... i think refreshing your PC with your win8 installation disc would help a lot
      My System SpecsSystem Spec

  7. #7


    How is running under a Windows account as opposed to a local account going to fix this problem. Seems to me it would make it worse if anything.

    An easy way to get rid of Windows.old is to boot a Linux Live CD or flash drive and delete it from there. Linux Mint Mate is a very Windows like Linux OS that runs great from a flash drive. Good tutorial for using it here: Emergency Kit - save your files from a dead OS - Windows 7 Help Forums

    Forget the save files part, just use it to navigate to the Windows 8 boot drive and delete the Windows.old directory tree.
      My System SpecsSystem Spec

  8. #8


    india
    Posts : 101
    Windows 8 pro with WMC x86 & windows Blue preview x86 with Windows 7 Ultimate SP1


    to delete windows.old folder( in case the methods given by brink and xweaponx don't work... try unlocker

    http://www.filehippo.com/download_unlocker/
      My System SpecsSystem Spec

System = 100% Disk use, I can't delete Windows.old etc.
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