HELP ! XML parsing fatal error: Invalid document structure, line:1, file:C\Users

[pfmarconi]

Many years ago (after evening classes) I downloaded Dreamweaver CS 5.5 and made my one and only webite which is used for my wife's small business.
I tried to open DW this morning and was met with this message which means absolutey nothing to me.
Does anyone have any advice - in really clear terms - as to how I go about correcting the problem. 
Many thanks

Paul

[BenPleysier]

Go to the Configuration folder and rename it as Configuration_backup. Restart Dreamweaver.

[pfmarconi]

Thanks Ben
Following your advice I should rename the arrowed folder shouldn't I  ?
Paul

[Jon Fritz]

NO!!

That is NOT the correct configuration folder and will break DW completely if changed/removed.

Follow the steps I posted to get to the correct configuration folder.

[Jon Fritz]

To do what Ben suggests...

1. Turn on your Operting System's Hidden Folders. You can do a quick search for "view hidden folders Windows (your version)" in Google for the exact method for your operating system.

2. Go to the path in your screen capture (C > Users > your username > AppData > Roaming > Adobe > Dreamweaver (version) > your language > Configuration). The AppData folder in that path is normally hidden and inaccessible without doing Step 1.

3. Rename Configuration to Configuration_old

4. Open DW

What this will do is force DW to create a new, clean configuration folder, which includes a new Designer.xml file that should be free of corruptions.

EDIT: DO NOT rename the configuration folder in the Program Files location. That will disable DW permanently. The correct path has been added to the steps above for clarity.

[pfmarconi]

Many thanks Jon, I'm VERY grateful ! You stopped a major mistake being made.
I believe that I have the correct path and Configuration folder which needs to be renamed to Configuration_old ?
Thanks once more - and for your patience.
Paul

[Jon Fritz · Accepted solution]

Yep, the path in your most recent screenshot is correct.

Once renamed, restart DW and it will create a new folder in the same location that should come with a new Designer.xml file and allow the program to run correctly..

[pfmarconi]

Fantastic. Thank you very much for your advice Jon, I'm very grateful.
Thanks, Paul