How to fix issue of folders and drives opening in separate window?

Hello,
I am here to ask a technical question about my PC. I have been using Microsoft Windows XP since 2008 but I have not seen an issue with my operating system as it is being faced by me right now. The problem I have got with my system software is that my folders or even drives us to open without any follow-up.
Mean, whenever I open any folder or I click on any local disk drive, it opens in a separate window rather than in the same window. Suppose. If I would like to open five different folders in a single drive then they must be open in each separate window. For overcoming at this problem I have applied different methods and used various tricks but no gain till yet.
I took the first step to correct this issue as I checked my whole computer for viruses but my antivirus software didn’t find any threat. So, the problem remains. After that, I configured my PC’s live configuration again and run a maintenance wizard via PC tune-up utilities 2011 but even after that the problem was not fixed.
In the end, I tried fixing this issue by reinstalling my window (but I didn’t make raw partitions on my HDD) and the problem has not been fixed even with a fresh operating system. Now, I am really frustrated a lot due to this teasing issue and of course it is a great worry for me that I am not being able to fix it yet.
I need someone to suggest me the solution for this worst issue.
I am willing to know about the solution of this problem as early as it can be.
I want to know How to fix the issue of folders and drives opening in a separate window?
If anyone has a clue about the solution of this particular question then I’ll be greatly thankful to know.
Thanks
