How to Resolve - 32-bit & 64-bit Internet Explorer installed on 64-bit Windows 7 Ultimate PC. When 64-bit IE not open, clicking URL from Microsoft Outlook or icon on desktop accesses 32-bit IE by default, causing error. How default to 64-bit IE??

32-bit & 64-bit Internet Explorer installed on 64-bit Windows 7 Ultimate PC. When 64-bit IE not open, clicking URL from Microsoft Outlook or icon on desktop accesses 32-bit IE by default, causing error. How default to 64-bit IE?

There are both 32-bit Internet Explorer "C:\Program Files (x86)\Internet Explorer\iexplore.exe" and 64-bit Internet Explorer "C:\Program Files\Internet Explorer\iexplore.exe" installed on my Windows 7 Ultimate 64-bit OS PC.
If the 64-bit IE has a webpage
open, then there are no problems, and clicking a URL from Microsoft Outlook 2007, or icon on desktop invokes the 64-bit IE correctly.
However, if the 64-bit IE is not open, and I click Outlook or desktop URL, the default browser invoked is the 32-bit IE.
This
causes an error: "Internet Explorer cannot deploy the webpage.
What you can try: Diagnose Connection Problems." The diagnosis does not help.
When I start the 32-bit IE from Start > All Programs > Internet Explorer, instead of Start > All Programs > Internet Explorer (64-bit), the error "Internet Explorer cannot deploy the webpage" appears, also.
I learned from this forum that I cannot remove the 32-bit IE from my PC.
It does not show in Start > Control Panel > Programs and Features > Programs > Uninstall > Internet Explorer, or Microsoft Internet Explorer or Windows Internet Explorer.
How can I get the OS to default to the 64-bit IE, rather than the 32-bit IE?
Thank you for your insight, experience and thoughtfulness.
I am at my wit's end.

Anwsers to the Problem 32-bit & 64-bit Internet Explorer installed on 64-bit Windows 7 Ultimate PC. When 64-bit IE not open, clicking URL from Microsoft Outlook or icon on desktop accesses 32-bit IE by default, causing error. How default to 64-bit IE?

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It might be noted that I accessed the 360 Share Pro torrent site, and afterwards all my problems began...I ran a complete scan of Kaspersky AV 2010 on the PC, and fifteen viruses were removed, but the Firefox and IE still have problems

See...
Risks & Benefits of P2P file sharing
  •
http://www.microsoft.com/protect/data/downloadfileshare/filesharing.aspx
  •
http://blogs.technet.com/mmpc/archive/2008/10/06/the-cost-of-free-software.aspx
  • http://www.us-cert.gov/cas/tips/ST05-007.html
Steps To Help Prevent Spyware
http://www.microsoft.com/security/spyware/prevent.aspx 
Steps to Help Prevent Computer Worms
http://www.microsoft.com/security/worms/prevent.aspx
=========================================
I suspect you have MUCH more work to do!
NB: If you had no anti-virus application installed or the subscription had expired *when the machine first got infected* and/or your subscription has since expired and/or the machine's not been kept fully-patched at Windows Update, don't waste your time
with any of the below: Format & reinstall Windows.  A Repair Install will NOT help!
Microsoft PCSafety provides home users (only) with no-charge support in dealing with malware infections such as viruses, spyware (including unwanted software), and adware.
https://support.microsoft.com/oas/default.aspx?&prid=7552&st=1
Also available via the Consumer Security Support home page: 
https://consumersecuritysupport.microsoft.com/
Otherwise...
1.
See if you can download/run the MSRT manually: 
http://www.microsoft.com/security/malwareremove/default.mspx
NB: Run the FULL scan, not the QUICK scan!  You may need to download the MSRT on a non-infected machine, then transfer MRT.EXE to the infected machine and rename it to SCAN.EXE before running it.
2.
Now begin your own, new thread in one (only) of the following recommended forums for assistance by an expert in such matters.  DO NOT SKIP THIS STEP!!
   • SpywareHammer: Malware Removal
     
http://spywarehammer.com/simplemachinesforum/index.php?board=10.0
   • Spyware Warrior: Help with spyware removal
      http://www.spywarewarrior.com/viewforum.php?f=5
   • DSL Reports: Security Cleanup
     http://www.dslreports.com/forum/cleanup
   • Bluetack: Malware Removal
     
http://www.bluetack.co.uk/forums/index.php?showforum=172
   • AumHa: Malware Removal
      http://aumha.net/viewforum.php?f=30
If these procedures look too complex - and there is no shame in admitting this isn't your cup of tea - take the computer to a local, reputable and independent (i.e., not BigBoxStoreUSA or Geek Squad) computer repair shop.
Good luck!

~Robear Dyer (PA Bear) ~ MS MVP (IE, Mail, Security, Windows & Update Services) since 2002 ~ Disclaimer: MS MVPs neither represent nor work for Microsoft

• Download the Microsoft Windows ISO (installation device) from the following website:
  
• http://www.microsoft.com/en-us/software-download/windows10
• Users must select the appropriate ISO, either 32 bit or 64 bit, depending upon their individual computer.
• Extract the ISO file to a separate USB device or burn the program to a compact disc.
• Run the Microsoft Windows 10 upgrade directly from the software that you have thus created.

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