Windows 7: I need help for a weird problem.

Nope, can't get Tfc from there... Let me find an other download site

I just got it from there and have run it.

Same here, it's there.

it was giving me 'fits' earlier

2h30 later and over 200k files looked at, NIET!!

Next update the BIOS from Windows which is the safest method. Follow the Read Me steps exactly.

Test your memory using memtest86 CD for 5-6 passes and maker's HD diag/Repair full CD scan: http://www.tacktech.com/display.cfm?ttid=287

Next back up your files, gather your program installers, wipe the HD of all code and clean reinstall to overcome the likely effects of an in-place Upgrade gone bad: Clean Install Windows 7
Clean Install with a Upgrade Windows 7 Version

Wipe the HD using this method: SSD / HDD : Optimize for Windows Reinstallation

The installer is mostly driver-complete with newer arriving quickly via optional Windows Updates. Any drivers then missing in Device Managercam be found on the Support Downloads webpage for your computer or device model. Only change out drivers if performance dictates, first the chipset then display driver.

Install programs slowly to gauge performance after each. Don't let any programs write themselves into msconfig>Startup besides AV and gadgets. Use free MS Security Essentials for the leanest least intrusive AV.

When you've finished, clean and order the HD perfectly with CCLeaner ("Run CLeaner" and Registry tabs) then Auslogics Disk and REgistry Defraggers monthly.

Watch the Event Viewer>Admin View closely to google repeat errors to resolution. In Advanced Tools also watch Performance Log and Generate a System Health Report.

I went to Acer's site and downloaded the 1.16 bios update, but My comp says that I don't have the permission to use the phlashnt.sys driver. (even though i am administrator and every program was closed)

edit : memtest doesnt work for 64bit
edit : that fullscan for the harddrive will take about 50h... it is normal ?

Take ownership of the file Take Ownership Shortcut

same error message : (

Have you tried install when disabling the UAC?
Or might want to try it in safe mode...

EDIT:

You might want before re-install the Bios to "Unblock" all the files inside the extracted folders by right click each files, then follow what it says.

But i doubt it is something to do within the bios update, you have another prob somewhere.