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Konstantinos Tsoukalas

Konstantinos is the founder and administrator of Since 1995 he works and provides IT support as a computer and network expert to individuals and large companies. He is specialized in solving problems related to Windows or other Microsoft products (Windows Server, Office, Microsoft 365, etc.).


  1. Janice
    December 1, 2018 @ 11:55 am

    I used testdisk to recover my pendrive data, after restart computer, the screen become black and showing "loading DQMR V8". Means error or corrupt the all data or window missing??


    • lakonst
      December 2, 2018 @ 12:15 pm

      @Janice: First of all unplug the pendrive before boot. If you face the same error then you have do something wrong when you used Testdisk. At this case, connect the hard drive to another computer and backup your data. Finally diagnose the hdd for problems before reinstalling Windows.


  2. HecXZ
    March 27, 2013 @ 2:10 am

    Adding to my arsenal…


  3. G.S.
    March 22, 2013 @ 1:29 pm

    Thank you… one of the best write-ups I've seen on the subject of hard drive checking. We have come a long way from chkdsk !!


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