Problems with PDF files that come up as Libre Office Draw files

I am having problems with PDF files that come up as Libre Office Draw files and can see no way of saving or printing them. For example I am trying to download "The Complete Windows Networking Troubleshooting Guide" which is described as a PDF file but comes up as "https://www.offidocs.com/osessionx03/#/client/REVGQVVMVABjAGRlZmF1bHQ=" which is a Libre Office Draw file. I am running Windows 10 Pro and have never had this problem before as my PDF files always open in Adobe Reader. Can anyone please advise?
medcomputersAsked:
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JohnBusiness Consultant (Owner)Commented:
Go to Settings or Control Panel, Associations and change .PDF to Adobe.  Does that work?

Note:  It is called Default Programs in Control Panel, but that leads to Associations.
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medcomputersAuthor Commented:
Hi John
I am sometimes completely baffled by computers. On problem just needs to another.
I managed to find Default Programs in Control Panel but did not realise there were so many programs where so many associations could be changed. Eventually I found Libre Draw and clicked on change association but there were no options and it took me to the Microsoft Store which the PC said it could not reach as I was not connected to the internet. I checked my connection and I was and am connected to the internet. I could go no further. Is there any other way around this problem. I am particularly mystified as this is a completely new problem today. I was happily opening PDFs in the normal way over the weekend.
Matthew
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JohnBusiness Consultant (Owner)Commented:
Given the above, try the following:  Open cmd.exe with Run as Administrator. In the command window, run:

dism.exe /online /cleanup-image /restorehealth

Restart and test
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medcomputersAuthor Commented:
Unfortunately John it has made no difference. Hope you can see from attached png file. I have restarted computer but everything is just the same.
MatthewResults of running DOS command
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Paul SauvéRetiredCommented:
if fact, LibreOffice uses Draw to open PDF files. you may have inadvertently changed the default from Adobe to LibreOffice when you installed it.

Settings ―> Aps ―> Default Apps ―> Choose default applications by file type ―> scroll down to .pdf, click on the icon to the right and select the app you want to use:default app
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JohnBusiness Consultant (Owner)Commented:
Did you try resetting the PDF default?
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medcomputersAuthor Commented:
Hi Paul
PDF Viewer is already set to Adobe Acrobat Viewer. The problem is why are what are supposed to be PDFs opening in Libre Draw?

John I was trying to change default viewer the other way round by looking for Libre Draw and changing default setting to PDF. Is that the right way to go about it? But I still cannot access Microsoft Store as PC still says I am not online but I am absolutely sure that I am online.

Matthew
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JohnBusiness Consultant (Owner)Commented:
There are a couple of things going on and DISM has not found anything.

Make a new, test Windows User Profile (Account) using Setup, Users. Log into the new Windows Account and test both Associations and the Microsoft Store.
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medcomputersAuthor Commented:
John, I'm not quite sure what you mean by Make a new, test Windows User Profile (Account) using Setup, Users. Log into the new Windows Account. Could you explain a little more? Thank you.
Matthew
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medcomputersAuthor Commented:
John Do you mean Add a new user in PC settings? Then recheck everything using that account? Matthew
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JohnBusiness Consultant (Owner)Commented:
Yes. Settings. Accounts, Family and other people, Add someone else:   From there add the new account, give it a password and test it.
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medcomputersAuthor Commented:
John I am sending this from second account. Yes it does work PDF opens as PDF but still opening as Libre Draw on my main account. The new account was setup to open PDFs in Edge But I changed that to Adobe Reader which works fine. What I don't understand is that in my main account PDFs are already set to Adobe Reader but still open in Libre Draw. As I have said this is a very new problem which has come from nowhere and is nothing to do with any changes that I have made to my computer. I am still mystified.
Matthew
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JohnBusiness Consultant (Owner)Commented:
New:  The new account was setup to open PDFs in Edge But I changed that to Adobe Reader which works fine.
Main:  What I don't understand is that in my main account PDFs are already set to Adobe Reader but still open in Libre Draw


This means the main Windows User Account is damaged and must be re-created. Save all documents, email, favourites and anything else in your main Account to another device (USB Key or USB Hard drive).

Make the new Account a member of the Administrators group. Be sure you do this.

Now log out your main account, log into the new account, delete the main Profile (Advanced System Properties) and the user (User Accounts), restart and make a new main profile. Log in as your main profile, set things up and recover your data.

Work carefully as this is almost like reinstalling Windows.
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medcomputersAuthor Commented:
Thanks John I will take up your final suggestion when I have time. I rather feared it might mean reinstalling Windows and I am aware I need to be careful. I would not have thought about setting up a second account to test what is happening.
Matthew
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