Thank you so much for your assistance.
About the OS clean re-installation you are asking me about: I did it 7 months ago and don't remember details - I was following Microsoft's step by step instructions (with the screen shots) and most of them were OK, but I found the explanation about dividing the disk and creating partitions quite unclear. What I know is that I have only one hard disk(physically speaking) and while re-installing I had to create 2 parts(partitions) - a smaller one for the OS and a bigger for everything else. I believe this is what I did. I am sorry I can't tell you much more than that. You can see below the results of 'bcdedit', if they can help in this sense. This time the command showed results (when I tried it the previous day it didn't show anything).
I did a lot of work today and have some results. I am also learning many things, meanwhile.
First, I booted again with the Windows DVD. From the command prompt in System Recovery I ran 'bcdedit' and this time I got this(shortened):
Windows Boot Manager
identifier - <bootmgr>
description Windows Boot Manager
Windows Boot Loader
Then I ran 'chkdsk d:/r, with the result, summarized, that many, many, many files were repaired, but some not.
I got a message that there was system repair pending, requiring reboot. I did reboot with the DVD again and was taken to Windows Error Recovery screen. What I found out is that on both keyboards (wireless and wired) I can press enter (to confirm that I reboot from DVD), but when I have to choose a recovery mode(safe or something else) the arrow keys on both of them don't work. So, I waited and Windows started by itself in normal mode, but I was logged in with a temporary profile.
Now, from inside Windows I ran 'sfc /scannow (without any parameters). The result; Windows Resourse Protection found corrupt files and was unable to fix some of them. I am attaching part of the whole log file - only with the files which could not be repaired -'scan results.txt'.
It is still very confusing for me which drive letters to use in either of the commands (sfc and chkdsk). I don't know if my boot and Windows directories are different. This is why I ran only: 'sfc /scannow'. Also I have no idea if dual/multi booting has anything to do with my computer system. At least this is what I understood from the explanation in "SFC /SCANNOW : Run in Command Prompt at Boot: For those that are dual/multi booting or if the Windows Recovery Environment (WinRE) does not 'see' the Windows Operating System needing repair, see Method Two below." I believe the latter case applies to me, because when I was going through the Recovery and was supposed to check the letter of the drive - no Operating system/Partition/Location showed up. ( my post #23)
Next I did what you asked me to do in your post #8, but I couldn't do until now - I got the Disk Management Results and attach them as well: 'Disk Management screenshot.jpg'
Then I downloaded and ran DriverMax and attach these results too as 'Scan Results for Driver Updates"(5 screenshots).
And at last I tried to reboot the computer without Windows DVD and the same happened as in my first post: I got to the Windows screen; the process stopped - the screen became black, I pressed the re-start button and Windows started (with temporary profile).
I am soo sorry this post is so long, but I hope the information will be useful, and now that I can communicate from the computer itself - maybe I can provide extra information if needed.
I am aware how difficult and time-consuming it is to try to help from distance someone with my level of knowledge... You spent so much time with my problem over the weekend.
So, remaining very, very grateful for all the help I get, I will slow it down and take it just step by step from now on.
It is just a computer, isn't it, nobody' life is at stake...So, we will take it easier...
Edited by pomognetemi, 29 October 2013 - 03:37 AM.