First of all, Safe Mode is a Windows maintenance mode where only the bare minimum of drivers are loaded, and that excludes software needed for you to connect to the Internet. So unless you used Safe Mode With Networking Support, I'm not sure what configuration/software your PC is using to get online in Safe Mode.
Anywho, first thing I'd do is just restart again in regular mode & see if it's working now (some simple problems are fixed by just starting in Safe Mode then rebooting). If it still reboots automatically, and it probly will, use System Restore to return to a point before you removed stuff which caused the reboots (System Restore should run fine from Safe Mode).
Quote:I built the system 2 years ago out of a kit, screwed it up and paid an expert to finish it up and load the software
I suspected it was a custom-built machine, as many people who slap together their own PCs pay little attention to the importance of temperature control.
Some other people on this thread have been IMO mistakingly trying to troubleshoot this as if it were a software issue, but, short of being able to look at the machine for myself, I don't believe that's addressing the real problem. Don't get me wrong, software issues (e.g. Windows configuration problems, registry errors, crapware, etc.) may be causing other problems which appear to be similar in nature, but I'm trying to address what I believe to be the main underlying cause of the problem where intensive CPU processing causes the computer to lock up...The best example might be:
OCCOM BILL wrote:It also freezes when attempting to ... open a large 3 dimensional view in an architectural program (smaller ones work fine).
Here's some of what I think you should do to address the temperature control problem...
- Clean out the dust from the PC inside & out, and replace any fans (including the one in the power supply) which you think may no longer work effectively enough.
- Remove the CPU fan & heatsink & check how the heat dope (sorry, thermal paste), if there's any there in the first place, is looking. Applying heat dope to the CPU greatly increases thermal conductivity & is a must for today's hot, hot, hot CPUs, such as yours running at 2.2GHz (though it isn't needed if your heatsink has a thermal pad on it). The amount of paste to apply depends on what brand of paste you're using & whether you're putting it on a heat spreader or on the core itself. You don't wanna use too much as it can get messy & will defeat the purpose. I'd recommend Arctic Silver (
www.arcticsilver.com ).
- Upgrade your motherboard's BIOS & chipset driver to the latest versions. I've seen relatively recent Toshiba laptops (and it wouldn't surprise me to hear about this on other systems) which had faulty temperature control software which was fixed by an update. Basically what was happening was that the firmware which controlled CPU shutdown during overheating was kicking in too soon & not allowing the fans to do their job properly.
- Close up any open spaces in your PC case other than the small ventilation slits or holes which are there by design. This will help improve airflow.
- Turn off any CPU overclocking features you (or the other guy who helped set up your system) might have enabled. Overclocking hijinks don't usually damage your CPU in the short term, but excessive overclocking (especially with inadequate cooling) can greatly shorten its life. I've also heard of cases in which the CPU simply stopped running at the overclocked speed after 2 years, but still ran fine at the stock speed.