No browser will open any page / Win 7 Pro 64

A Windows 7 Pro 64 computer suddenly is running slowly re: opening programs AND will not open any page using any browser.
Have scanned for malware using a very good set of tools - nothing found.  This seems like a very clean computer and there is every reason to believe it would be.
Have run various repairs to no avail.
Although I did find the hosts file empty - (does that really matter?)

Can't open the router GUI interface at 192.168.1.1 even!!

DNS seems to be working if one does a ping.
But can't open with a browser www.google.com www.yahoo.com, etc.

Also, I see that many programs don't open nearly as quickly as normal.  It takes a long time for them to open.  That's odd.

The HD tests fine with good transfer speeds as well.

Running sfc now....

Any suggestions?
LVL 27
Fred MarshallPrincipalAsked:
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Nick RhodeIT DirectorCommented:
Could be a proxy setting in IE.  I would download Roguekiller and TDSSkiller to check.

Typically with viruses or very strange activity I do the following:

Download these tools

CCleaner: http://www.filehippo.com/download_ccleaner/
TDSSKiller: http://www.bleepingcomputer.com/download/tdsskiller/
RogueKiller: http://www.bleepingcomputer.com/download/roguekiller/
Adwcleaner: http://www.bleepingcomputer.com/download/adwcleaner/
Malwarebytes: http://www.bleepingcomputer.com/download/malwarebytes-anti-malware/

And run them in that order:

1) CCleaner
2) TDSSKiller
3) RogueKiller (scan, fix host, fix proxy, fix dns)
4) Adwcleaner: (Scan, Clean)
5) Malwarebytes: (download all updates and run a full scan)
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aadihCommented:
What happens from safe mode with networking?
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jcimarronCommented:
fmarshall--
Any error messages?
What version of IE?  Firefox?

Perhaps try fixing Winsock.
Instructions from
http://windows7themes.net/winsock-fix-for-windows-7.html

"1. Open up the command line utility and enter:

netsh winsock reset catalog (resets winsock entries)
netsh int ip reset reset.log hit (resets TCP/IP stack)

2. Reboot your PC "
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Fred MarshallPrincipalAuthor Commented:
download Roguekiller and TDSSkiller to check.
Already done.
netsh winsock reset catalog (resets winsock entries)
netsh int ip reset reset.log hit (resets TCP/IP stack)
No change.

I can use telnet to open email port 110.
I can use telnet to open google.com 80

IE 10.0.9200.16660
FF 3.6.1.7
Chrome 29.0.1.1547.62m

Safe mode:
It's taking a long time.......
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jcimarronCommented:
fmarshall--
"Although I did find the hosts file empty - (does that really matter?)"

I cannot remember.  The HOSTS file (or its contents) may be a hidden file.
To really show all hidden folders and files
1) In Explorer, click Organize in ToolBar|click "Folder and Search Options"|View|uncheck "Hide protected operating system files"|Yes|Apply|OK.  
2) And if not already done, under "Hidden Files and Folders", check "Show hidden files, folders,..." and uncheck "Don't show hidden files, folders...".

If no help, I suggest a Repair Install
http://www.sevenforums.com/tutorials/3413-repair-install.html
It should not affect your personal data or installed programs, but it never hurts to back up.
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Nick RhodeIT DirectorCommented:
with rogue killer did you do the fix host, fix dns, fix proxy?

You could try uninstalling and reinstalling the NIC drivers
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Fred MarshallPrincipalAuthor Commented:
Well, in view of the stellar performance using the command line and telnet for internet access, I'm not so sure that messing with the NICs any further makes a lot of sense.  Maybe someone could help me understand that.  

I *have* rebooted the routers because I've seen unexplainable behaviors in those kinds of devices (can get to some web pages and not others, etc.)   But, in this case, it didn't help.

Rogue Killer didn't list any issues.  It was one of the many tools I use/ used and nothing showed up on any of them.  Can it help if there's nothing listed after a scan e.g. DNS?
Actually DNS is working according to a variety of command line actions like ping, tracert, nslookup....
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aadihCommented:
Consider a repair install. :-(
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Nick RhodeIT DirectorCommented:
Host files should look like this:  http://support.microsoft.com/kb/972034

I would say try to uninstall and reinstall the NIC drivers.  If that does not resolve the issue then you might be doing a repair install or reformat
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jcimarronCommented:
fmarshall--
Repair Install already suggested in http:#a39471609
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Fred MarshallPrincipalAuthor Commented:
jcmcmarron: I'm working on doing a Repair Install....

NRhode: thanks for the info re host files.
So the Win 7 host file would be empty as a standard (less the commented lines)...
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Nick RhodeIT DirectorCommented:
Pretty much :)

So did you perhaps try connecting to a different port or directly to the router?  Just hope its not anything outside the system and the hardward is not faulty.
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Fred MarshallPrincipalAuthor Commented:
The command line accesses are fine.  Seems to rule out hardware.
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Fred MarshallPrincipalAuthor Commented:
A repair (upgrade) install did it.  Thanks all!
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aadihCommented:
Great. You got it working. :-)
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jcimarronCommented:
fmarshall--I suggested a Repair Install in http:#a39471609 almost an hour before aadih.
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Fred MarshallPrincipalAuthor Commented:
jcmcmarron:  By golly you did!  Sorry about that.  Is there a way to adjust or wait for next time?
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jcimarronCommented:
fmarshall--Do you have a yellow "Request Attention" button at the bottom right of your first post?  If so click it and ask for help.
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Fred MarshallPrincipalAuthor Commented:
No "Request Attention" at this point....  But I won't forget.
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