Is my Toshiba Satellite C665 over heating?

While scanning a 167 MB driver file for nVidia graphics core-temp exceeded 60°C limit.
60° C was my limit (not knowing anything about core temperature)
The fan has been running for the last 20 minutes.

Max temp (60°C) was exceeded while scanning the 167 MB exe file.

I suspect the fan etc needs a clean, after 11 months of continual use.
Recently watched a how-to-clean tutorial with dread, having never cleaned a laptop in my life.
Cleaning this Toshiba Satellite is like taking the engine out of a car to empty the ashtray.
(Screen comes off, keyboard out, CD/DVD drive out PLUS lots of bits and pieces
(not simple like my retired Acer laptop

How critical are the temps (Dual core) currently sitting on 50°C and 54°C ?



I am about to update the nVidia driver because of screen refresh lagging. The current driver is old (2011)
Last thing I need mid upgrade, is a crash

Would appreciate any help :)
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SPECS:
Toshiba Satellite C665
OS:= Windows 7 Home Premium (32-bit), sp1 (Build 7601)
CPU:= Intel(R) Core(TM) i5-2410M CPU @ 2.30GHz
Cores:= 2
UI:=Classic Shell Start + Classic Explorer
Motherboard:= TOSHIBA Portable PC
Memory:= 2,806 MB
Graphics:= NVIDIA GeForce 315M *
Sound Card:= Speakers (Conexant SmartAudio H |
Monitors:= x1, Generic PnP
Screen Resolution:= 1366 X 768 - 32 bit
Hard Drives:= C: 585.4GB
PSU:=
Case:= Toshiba Satellite
Cooling:= default fan
Keyboard:= default + Logitech K260
Mouse:= default pad + Logitech M210
Internet Speed:= ADSL2
Antivirus:= Bitdefender Internet Security 2013
Browser:= IE-9.10, PaleMoon, Firefox 20.0
Others:= USB Safely Remove, Metapad, ClipX,
7Zip, Classic Shell Start, Explorer++, FileSearchEX, KeyboardLEDS, CapsLock,
MalwareBytes, MyDefrag, PostBox, ClipX

Thanks JimBob5524 :)

My 60°C was a shot in the dark.

What would you suggest I set the alarm temperature at?

I would try 75c and see if it doesn't go off too often? Bi-annual cleanings at a minimum !

Thank you linnemeyerhere :)

Dreading "cleaning day" Toshiba have turned accessing the fan into brain surgery.
The laptop is never closed so the keyboard is always covered in dust.
Is it true that air intake is through the keyboard ?

A trick I found for keeping my laptop cool.
Drink four bottles of your favourite drink.
Glue (with double sided tape or blue-tack) the four plastic bottle tops to the underside of the lappy.

Used the same trick on my overheating modem-routers too.

Lappy's run hot and of course OZ summers will test any rig but 85-90c+ starts to worry me. I would invest in a laptop cooler or a stand as I use.

Thanks again linnemeyerhere, +1
We passed each other in the post