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Discussion Starter · #1 ·
I have Acrobat Reader XI on a Windows XP system. Could open PDFs fine until this week. I get a message that says I need to open it with protected mode disabled. If I do that I get an error message that says: Acrobat failed to load its CORE DLL. I tried to get Acrobat Reader XI to repair itself in the add/remove programs section, but get a message that says 'this patch pkg could not be opened'. So, the next solution listed on the acrobat website was to check for rootkits, so I did a scan with Kaspersky. It came up clean. The next solution says to remove and reinstall. I'm a little leery about doing that since am not sure the most current Acrobat software will load on XP. Yes, I know I am using an outdated operating system, but love Outlook Express. I use it to run a continuing education program. And OE only runs on XP. Any ideas you have will be appreciated. THANK YOU!
 

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Discussion Starter · #4 ·
If I remember correctly, the newest version of Adobe Reader that will install and work in Windows XP SP3 is 11.0.08
https://www.neowin.net/news/adobe-reader-xi-11008/

I'm pretty sure that none of the versions of Adobe Acrobat Reader DC will work.

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Thanks. I have version 11.0.18 at this time. So, do I remove the current reader and install again?
 

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Discussion Starter · #7 ·
At least one of the links that we gave should work, so you could uninstall and then install anew.
Thanks and another question. I installed the anti virus Clamwin late last week and ran a few scans. And this week the Adobe reader won't open PDFs. I checked the quarantine for Clamwin and it has the following entries. Do you think those files being removed are causing me not to be able to open PDFs?

Adobe reader upd11013.msp.infected
Adobe reader upd11014.msp.infected

Also the following files are quarantined from Acrobat reader
acrobroker.exe.infected
acroext.exe.infected
acrord32.dll.infected
 

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I have no idea. If you have been toying with suspicious PDF files you may want to uninstall Adobe Reader and delete those files and install anew.

If you think there's not really any problem other than that anti-virus program then uninstall it and un-quarantine the files.
 

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elsb:

Clamwin is very inaffective and hasn't been updated in years, so get rid of it.

There are NO up-to-date antivirus apps that support Windows XP SP3.

I maintain a Windows XP Pro SP3 test computer on a monthly basis, so I'm aware of the increasingly number of apps that no longer support it.

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Discussion Starter · #12 ·
I have no idea. If you have been toying with suspicious PDF files you may want to uninstall Adobe Reader and delete those files and install anew.

If you think there's not really any problem other than that anti-virus program then uninstall it and un-quarantine the files.
I don't open questionable PDF files. Only the ones I create :) Yea, I think I will un-quarantine those files. My former Antivirus, Avira, never put those files into quarantine. Avira stopped updating virus definitions in January, so I had to find a different anti-virus that works with XP. What a time consuming experience! I downloaded Avast on Wednesday and plan to disable Clamwin after taking those files out of quarantine. Thanks again for your help with this.
 

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Do NOT install Avast.
Besides its most current version not supporting Windows XP SP3, installing it may cause an issue with the internet connection.

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Discussion Starter · #14 ·
Already installed When I researched XP antiviruses, Avast version 18.8 was recommended. It won't update to future software versions, but will update the virus definitions. That's what I read. Hope it works. Clamwin is really not very effective as it only checks for a fraction of new daily viruses, from what I have since learned after installing it.
 

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Discussion Starter · #15 ·
elsb:

Clamwin is very inaffective and hasn't been updated in years, so get rid of it.

There are NO up-to-date antivirus apps that support Windows XP SP3.

I maintain a Windows XP Pro SP3 test computer on a monthly basis, so I'm aware of the increasingly number of apps that no longer support it.

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Yes, I will uninstall Clamwin after I figure out this Adobe Reader thing. I have Windows XP version 5.1 Service pack 3. Yes, there tends to be a growing number of unsupported software and websites. It seems that Chrome works better than Firefox for XP. Thanks for your input with all of this.
 

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Both the Google Chrome and Mozilla Firefox browsers haven't supported Windows XP SP3 for a long time, so you're using outdated versions.

The only browser that I'm aware of that still supports Windows XP SP3 and stays up-to-date is Maxthon Cloud Browser - which is what I use in my test computer.

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Discussion Starter · #17 ·
I am sure my Firefox and Chrone versions are older. The guy who used to help me on Tech Support Guys helped me to set it up years back.

Without going back thru this thread, did you mention what anti virus you use on your xp?

So, is Outlook Express transferable to Maxthon Cloud Browser?
Thanks Flavallee!
 

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I use my Windows XP SP3 computer only for testing purposes and don't use it on-line in the same manner that I do with my Windows 7 SP1 and Windows 10 computers.
When I do go on-line with it, I use Maxthon Cloud Browser 5.3.8.2000(current up-to-date version).
All other browsers are too outdated and unsecure and don't support most websites.

No known up-to-date antivirus app supports Windows XP SP3, so I don't install and use one.
I do scans with certain third-party security apps that still support it.

The Outlook Express e-mail app that's built into Windows XP SP3 is not transferable to another browser.

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Discussion Starter · #20 ·
I use my Windows XP SP3 computer only for testing purposes and don't use it on-line in the same manner that I do with my Windows 7 SP1 and Windows 10 computers.
When I do go on-line with it, I use Maxthon Cloud Browser 5.3.8.2000(current up-to-date version).
All other browsers are too outdated and unsecure and don't support most websites.

No known up-to-date antivirus app supports Windows XP SP3, so I don't install and use one.
I do scans with certain third-party security apps that still support it.

The Outlook Express e-mail app that's built into Windows XP SP3 is not transferable to another browser.

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Hi - What 3rd party security apps are those? Thanks!!
 
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