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You may follow the methods in the order they are presented and see if they can resolve the issue.
Method 1: Reset the modem or the router
To do this, follow these steps:
1) Disconnect the cable that connects the computer to the modem.
2) Turn off the modem and the router.
Note: If the modem or the router does not have a power switch, disconnect the power to the modem or to the router.
3) Restart the computer.
4) After your computer has restarted, turn on the modem or the router, connect the cable from the computer to the modem or the router, and restart the computer.
5) Make sure that all network cables are securely connected.
6) Start Internet Explorer.
If you receive the same error message, go to Method 4 and proceed accordingly from the link below.
If the modem or the router does not have a power switch, disconnect the power to the modem or to the router.
Let us know that fixed your issue
Varun J: MICROSOFT SUPPORT
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IE was working fine until 2 days ago. now it says IE cannot display the web page. and this is ib the address bar. http://go.microsoft.com/fwlink/?LinkId=74005. It says i'm not connected to the internet, but as you can see with mozilla I am. Whats going on?That redirects here
My boyfriend did forget to put the os, which is xp professional, in my post. Sorry for that, but runonce didn't work either. Thanks
Sorry not to update sooner, but with the holidays, I only had time to tackle this on 12/20, and it looks like I'll be working on it some more either after Christmas or New Year's. In case someone else has this problem in the future, I'm updating my post
to what I've tried so far. If anyone (including someone from Microsoft Support) has better suggestions, please offer them! Maybe MS can use this info to create an article for the knowledge base?
I started with Varun J's suggestion to use the following article: http://support.microsoft.com/kb/956196
I started with Method 4 (deleting browsing history) per his suggestions above, and I had no change whatsoever, still getting the go.microsoft....=74005 and the page itself was still completely blank/white - it didn't even give me the infamous IE cannot display the page. Next, I tried Method 5 (use the IE no add-ons mode), but my IE tools menu didn't give me a list to disable. From there, I went on the the "Advanced Troubleshooting" in the article, Method 3 for testing IE by using safe mode startup option that enables networking. While I still got the go.microsoft...=74005, at least now the page was no longer blank and said IE wasn't connected to the Internet (which I truly wasn't at that point). I then went to Method 8 to reset IE configuration settings. Still got the go.microsoft....=74005 and my page now said IE cannot display the page. I then re-enabled everything in the list of add-ons to be disabled/enabled, do each one at a time. When I enabled my Earthlink toolbar, I was still OK, but when I enabled the last 3 items that were Earthlink-related, I was back to the blank/white page again, so I uninstalled my Earthlink toolbar (and then all 4 add-ons that were EL-related were no longer on the list). Unfortunately, it only got me back to the go.microsoft....=74005 and my page said IE cannot display the page.
Then I referenced article http://support.microsoft.com/kb/318378 on installing or repairing IE in Vista and XP. I started at Method 2 to reinstall IE 7 or 8. Since I couldn't access anything with the effected computer, I downloaded IE8 on another computer (selected "save" instead of "run" and saved it to my Cruzer) to get the file to the effected computer. The problem persisted. I finally came to the conclusion that I would have to reference "Troubleshooting for advanced computer users" in the article, which suggests performing an in-place upgrade (reinstallation) of Windows XP and gives
http://support.microsoft.com/kb/315341. I came across an article on a repair installation of XP if a later version of IE is installed, which since I currently have IE7 on my computer (I uninstalled IE8 after it was clear it didn't solve the problem), I thought I might need the info.
If somebody has anything else to suggest that is less drastic, that would be great, but right now it looks like I'm going to have to try some kind of repairing or reinstalling of XP. Good thing I keep my files (documents, pictures, etc.) backed up on a regular basis...
Error message after you install a Windows Internet Explorer update from Windows Update or from Microsoft Update: "Webpage cannot be displayed":
If tweaking your third-party firewall's settings don't help, try the following:
1. Disable your anti-virus application, all Norton Add-ons (if any), any real-time protection provided by an anti-spyware application (except for Windows Defender; includes Spybot Tea Timer, SpySweeper Guards, AVG AS guard.exe, etc.), disable any third-party firewall AND THEN enable the Windows Firewall.
NB: You're "working without a net" now: Don't to ANYTHING else online (e.g., browsing; reading email; chatting) except #4 below until your anti-virus application has been re-enabled! If you're running ZA Free firewall, you may need to uninstall it instead of disabling it.
2. WinXP: Uninstall "Security Update for Windows Internet Explorer 7 (KB976325)" via Add/Remove Programs (make sure Show Updates box is checked at top right) and reboot.
Vista: Uninstall "Cumulative Security Update for Internet Explorer 7 [or 8] for Vista (KB976325)" or "Security Update for Microsoft Windows (KB976325)" via Start | Control Panel | System And Maintenance (If you are using Classic View, skip this step) | Windows Update | Installed Updates & reboot.
3. Re-do #1 above.
4. WinXP: Go to http://windowsupdate.microsoft.com | Select CUSTOM and scan | Install any Critical Security Updates offered (e.g., KB976325). If a Root Certificates update is listed in the Optional Software Updates category on the left, install it to take full advantage of IE's enhanced security.
Vista: Run Windows Update manually and install any Important updates offered (i.e., KB976325).
5. Reboot & make sure everything in #1 above is enabled again and, if applicable, disable the Windows Firewall and enable (or reinstall) your third-party firewall.
For home users running Vista SP2 or Win7 (only!), no-charge support for security updates is available by calling 1-800-MICROSOFT (1-800-642-7676) in the US or 877-568-2495 in Canada. 
For more information about how to contact your local Microsoft subsidiary [i.e., in other regions] for support issues relating to security updates (only! ), visit the following Microsoft International Support website: http://support.microsoft.com/common/international.aspx?rdpath=4
 Monday through Friday, 5:00 AM - 9:00 PM Pacific Time; Saturday and Sunday, 6:00 AM – 3:00 PM Pacific Time
[@wiwillie, raphael & any other so-inclined Moderator: Please do NOT edit any of my posts without my explicit permission! Thank you.]
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