PC continues to freeze after 20-25 minutes (no bsod)

Hallo guys from the forum,

i have a freezing issue with my pc (details of my pc can be found in my profile information).
It keeps freezing after 20-25 minutes and every time it does i have to press the powerbutton off and on to restart the pc again just to have another 20+ minutes of pc-ing. sometimes when starting the pc, i get the 'BOOT MGR IS MISSING' (probably spelled it wrong).

i solve this short-termed each time by pressing the delete button when the acer screen appears and turn everything to default.

Now knowing this all, i have the question if you guys know any reason why it keeps freezing and if its possible also send any possible solutions.

Thank you very much,

-Arikovebau :)

Attachment 326513 Here is the .nfo file zipped up.

And the .txt version of it Attachment 326515

Okay Koolkat77 i have done what you instructed me to do and these are my results:

-i deleted Daemon Tools and replaced it with Magic ISO and did the sptd.sys uninstaller thing

-there was nothing wrong in the sfc /scannow or /verifyonly, 100% okay even after 3 times

-The clean boot didn't work since the pc froze after 20-30 min again as usual.

- i removed a couple of startup programs that are not usefull, like skype or utorrent

Conclusion: The pc still keeps freezing around 25 minutes. no big improvements
Do you have any further advise?

btw I very appreciate the help you are giving me

Okay, Koolkat77. i have done what you instructed me to do and these are my results:

-Deleted Daemon tools and replaced it with Magic ISO (also did the sptd.sys uninstaller

-there were no negative results from the sfc /scannow and /verifyonly

-removed some startup programs such as utorrent,skype, etc..

-the clean boot have no results and no effect on the freezing problem, it kept freezing after 20+ min


Conclusion: Sadly no big improvement. the pc still keeps freezing after 20-30 min.

Koolkat77, do you have any other advise for me?

btw i very appreciate your help

-Arikovebau