Access denied to C: drive serious issues

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  1. Posts : 32
    windoes 10
       #1

    Access denied to C: drive serious issues


    Following a successful upgrade from my PC running Windows 7 pro 64bit I had a short while running OK. I then had a Notepad window appear on startup together with a sub window saying 'access denied'. Clearing these was no problem but I asked on another forum how to get rid of these messages. I was told to change the access rights on my C: drive and that was when my problems really started.

    Now I can't access my C: drive at all and most of my programs transferred from W7 are not working. Whatever I do I get a message saying 'access denied'! My D: drive (partitioned) is fully OK.

    I have tried to change the access rights in C: ---- Denied
    I have tried to recovery/reset on my W10 ----Failed
    I have tried to revert back to W7. It got 1% into making the change and stopped ---- Failed
    I even tried option 4 in this link Administrator account - Enable or Disable in Windows 10 - Windows 10 Forums but I got as far as putting REM_SAM into the Load Hive and it said it was already in use ----Failed

    Although I have a backup of all my personal folders and files I do not have a backup of my W10 set up. I think I have a backup of my Windows 7 but it is not up to date and I am not really sure how to use it.
    I really need help on this one. I have over 20 programs that were successfully transferred over to W10 most of which I need but am not sure how to reload them if they are lost. Most are not now working!
      My Computer


  2. Posts : 73
    Win 10 Home
       #2

    IMO, as it sounds like you've done everything else, including the attempted 'recovery/reset' - have you tried reinstalling 10 from a USB media?
      My Computer


  3. Posts : 4,802
    Windows 10 ProWorkstation -- Whichever is highest build number.
       #3

    I think you have a virus judging from those pop-ups you got.
      My Computer


  4. Posts : 32
    windoes 10
    Thread Starter
       #4

    Thanks bookfox for that suggestion. How do I go about using a USB to reinstall W10. I did download W10 to get me going in the first place as the W7 upgrade did not work. The file was Windows10Upgrade9252.exe . Would this be the file you mentioned?
      My Computer


  5. Posts : 4,802
    Windows 10 ProWorkstation -- Whichever is highest build number.
       #5

    Jeff o said:
    Thanks bookfox for that suggestion. How do I go about using a USB to reinstall W10. I did download W10 to get me going in the first place as the W7 upgrade did not work. The file was Windows10Upgrade9252.exe . Would this be the file you mentioned?
    You need to go to this website.
    Code:
    https://www.microsoft.com/en-us/software-download/windows10/
      My Computer


  6. Posts : 17,431
    Windows 11 Pro
       #6

    Jeff o said:
    The file was Windows10Upgrade9252.exe . Would this be the file you mentioned?
    Where did you get that file from? I have never seen anything close to that coming from Microsoft.
      My Computer



  7. Posts : 32
    windoes 10
    Thread Starter
       #7

    Sorry about the delay in answering but I have been doing a deep virus scan. A few corrupt files but no big concerns.
    I forget where I got the upgrade file from but as I was getting nowhere with the W7 to W10 auto upgrade and MS was far from helpful so I probably asked in my Computer forum and given a link there.
    Do I use this again to reinstall W10?
      My Computer


  8. Posts : 17,431
    Windows 11 Pro
       #8

    I would download a file from Microsoft instead...

    Windows 10 ISO Download - Windows 10 Forums
      My Computer


  9. Posts : 4,802
    Windows 10 ProWorkstation -- Whichever is highest build number.
       #9

    NavyLCDR said:
    I would download a file from Microsoft instead...

    Windows 10 ISO Download - Windows 10 Forums
    All you need to do, is download the ISO, mount it, and run setup.
      My Computer


  10. Posts : 32
    windoes 10
    Thread Starter
       #10

    Thanks for the links to the ISO download . Looks as if I will have to do it via another PC as I don't have any admin rights on this PC any more.

    I have a few questions following any new installation:

    1. Will the replacement W10 be the pro 64bit version as I have now?
    2. I am using Windows Live Mail ( in W10) that has my email addresses and stored emails. Will I be able to install WLM into the new build? And how can I get all my currently stored old email mails transferred?
    3. I am also successfully using several other programs including Office 2003 & Photoshop CS2, both of which I have the correct keys. Will I be able to load and use these programs OK?
      My Computer


 

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