Hi when i activate enhanced speedstep technology form windows cant boot i try safe mode it is shutdown at classpnp.sys every time please help.
i did not replace cpu it is stock pentium t4500 it but i do anything before 1 mont it is;Welcome to the forums, newcomer!
We will need a little more information. Can you please pass the SKU for your laptop? if you're unsure of it's SKU, you can use CPU-Z to bring up tabs. Please parse a screenshot of every tab that you can see.
Also, by any chance did you replace the processor with something more....higher powered, from a Celeron to a Pentium, perhaps or higher?