Quad Core detected as single core

Hello yesterday i've made a system restore and some apps like Coretemp, CPU-Z and HWMonitor gives me as result Core #0 but in task manager on performance tab it display the four cores working. I read in some other threads about the advanced option in msconfig i've already checked\unchecked the number of processors but nothing happened. Please give me some hope before i need to reinstall windows again, there is so much to config and install CHRISTMAS IS COMING!!!

none of them are installed, those are portable. They never gived me problems but yesterday after i made a system restore and installed new version of comodo this problem comes in.

yes none of them are checked, i also deleted the processors from device manager so windows will reinstall them (read this in another forum). Maybe windows registry is corrupted, some database that makes others programs read my hardware info? Sorry my english its as bad as my knowledge about system config.

Yeah i already got that program but i need one like coretemp monitoring on the systray and the problem is that Coretemp, CPU-Z and HWMonitor gives me wrong information about the cores. So maybe if i try another monitoring program the results are gonna be the same.

No it doesn't, this is what i got from speccy

Code:

CPU
        Intel Core 2
            Cores    1
            Threads    4
            Name    Intel Core 2
            Package    Socket 775 LGA
            Technology    45nm
            Specification    Intel Core2 Quad CPU Q9400 @ 2.66GHz
            Family    6
            Extended Family    6
            Model    7
            Extended Model    17
            Stepping    A
            Revision    R0
            Instructions    MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, Intel 64, NX, VMX
            Virtualization    Supported, Disabled
            Hyperthreading    Supported, Enabled
            Fan Speed    1394 RPM
            Bus Speed    333.9 MHz
            Rated Bus Speed    1335.7 MHz
            Stock Core Speed    2666 MHz
            Stock Bus Speed    333 MHz
            Average Temperature    38 °C
                Caches
                    L1 Data Cache Size    4 x 32 KBytes
                    L1 Instructions Cache Size    4 x 32 KBytes
                    L2 Unified Cache Size    3072 KBytes
                Cores
                        Core Speed    Multiplier    Bus Speed    Rated Bus Speed    Temperature    Threads
                    Core 0    2671.5 MHz    x 8.0    333.9 MHz    1335.7 MHz    38 °C    APIC ID: 0, 1, 2, 3