How Can I Speed Up Windows?: Fast Solution to Error: Applications flash but will not load.

Applications flash but will not load.

Several of my applications will not start (including Chrome, Crashplan, and Netgear SMARTWizard).
Instead, the intro window quickly flashes on the screen and then disappears.
Other programs (including Internet Explorer, Safari, and Picasa) will start
without any problems.
I cannot successfully run a system restore (even in safe mode) but the most recent critical update (around 11/4/2011) involves a Microsoft Visual C++ addition and deletion.
Could that be the source of my problems? I've been trying
to solve this for DAYS so any help is truly appreciated!

As a side note, and in all fairness, I should say that I began a couple days ago troubleshooting a wireless Internet connection, but discovered that my firewire was disabled and I could not enable it, despite trying everything mentioned on this forum.
I tried to connect via LAN but could not automatically detect proxy settings, and again could not remedy this problem either.
Therefore, my problem may be larger than the one mentioned in the first paragraph, but I figure I have to start somewhere :)

Anwsers to the Problem Applications flash but will not load.

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Do any programs open? Does Notepad open?

Try a system restore.
If you have a restore point far enough back before your wireless problem, use that or else restore to a point before the application problem started if you can:
http://windows.microsoft.com/en-US/windows-vista/What-is-System-Restore

It looks like the troubleshooter was hinting at a clean startup to see if another program was interfering - I would recommend trying the full clean startup process and disabling all other programs to verify:
http://support.microsoft.com/kb/331796

To check for Windows updates

Open Windows Update by clicking the Start button Picture of the Start button, clicking All Programs, and then clicking Windows Update.
In the left pane, click Check for updates, and then wait while Windows looks for the latest updates for your computer.
If any updates are found, click Install updates. Administrator permission required If you are prompted for an administrator password or confirmation, type the password or provide confirmation.

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