1.    08 Feb 2017 #1
    Join Date : Feb 2017
    Posts : 1
    England

    Can't open windows 10 start button or Explorer


    Hi all, in need of some help.
    Just booted up my laptop and tried to open the start up icon for Windows and it'd not responding. Also I'm unable to open Explorer it's telling me 'class not registered' does anyone know what's happened?
    Last edited by Jemma87; 08 Feb 2017 at 14:27.
      My ComputerSystem Spec
  2.    09 Feb 2017 #2
    Join Date : Jan 2015
    UK, Midlands
    Posts : 11,071
    Win 10 Pro (1703)

    Hi, no idea what's happened, I'm afraid, my crystal ball's down for scheduled maintenance.

    Do you have any system restore points you can use? If so, I suggest you try that.

    Otherwise, do you know what you last changed that might have been significant? If you installed something in the last day, for example, you could try uninstalling it. You might be lucky.

    I'll assume you've not yet discovered how truly valuable routine disk imaging is, which we strongly and repeatedly recommend so you can help yourself to recover from difficult situations relatively quickly.

    Otherwise, here's what I suggest: do an in-place upgrade repair install.

    Precede it with this in case sthg has happened to your file system:

    From an admin command prompt
    [Windows key + X, click command prompt (admin)]
    chkdsk C: /F
    Your PC will need to restart.
    Make sure the result is clear or fixed- else do not proceed.
    Post back the result, which you can get after a restart as follows:
    How do I see the results of a CHKDSK that ran on boot? - Ask Leo!

    An In-place upgrade repair install will fix many things, but not those where the settings are not changed by the procedure.

    For this you need an installation medium with the same base build as you have installed, and x64 if you have a 64 bits OS, else x86 (32 bits).

    Recommendation:
    Before you perform the following major repair procedure, do create a disk image (see below).

    Repair Install Windows 10 with an In-place Upgrade - Windows 10 Tutorials
    - this includes a link from which you can obtain a Windows 10 iso file (" download a Windows 10 ISO"), or create a Win 10 bootable medium.

    I would recommend creating the bootable medium, as this can be used
    - for any future in-place upgrade repair install
    - to boot from and use its recovery options should Windows become unbootable.
    - to clean install Windows

    This will refresh Windows, after the manner of a Windows installation.
    - all/most associations will be unchanged
    - all your programs will be left installed
    - However: if you have installed some on a 2nd drive, these must be uninstalled or reinstalled on C: - else you will get an error message that you can not keep my apps because they arein an unsupported directory.
    - no personal data should be affected
    - you will lose any custom fonts
    - you will lose any customised system icons
    - you may need to re-establish your Wi-Fi connection
    - you will need to redo Windows updates subsequent to the build you have used for the repair install
    - Windows.old will be created
    - system restore will be turned off- you should turn it on again and I recommend you manually schedule a daily restore point.
    - you will need to redo any language downloads including the display language if you changed that)
    - inactive title bar colouring (if used) will be reset to default
    - if Qttabbar is installed, you need to re-enable it in explorer (Options, check Qttabbar)
    This is one of the better features of Win10: as each major build comes out, that's your updated reference build, and as updates are mostly cumulative, there will be few to do.


    Please consider using disk imaging regularly. It's a brilliant way to
    - preserve your system (and your sanity)
    - back up your data
    - restore your system to a previously working state in a relatively short time

    Recommended: Macrium Reflect (free/commercial) + boot disk/device + large enough external storage medium.
      My ComputerSystem Spec

 


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