what can i use instead of thermal paste

Indeed, thermal paste is critical for a computer's functioning as it facilitates efficient heat transfer from the CPU to the cooler. However, if you can't access thermal paste, there are a few alternatives. You could use thermal pads or adhesive, though these are typically not as conductive as regular paste.

In terms of application, thermal pads are likely the easiest alternative as they don't involve any messy application process. However, precision is necessary because once they're on, they adhere strongly.

While these substances can technically be used due their conductive properties, they're not recommended because they dry out quickly and lack the long-term efficacy of dedicated thermal compounds. Their use could potentially damage the CPU in the long run.

Precisely! Ideal performance and lifespan of your CPU is best achieved with materials specifically engineered for this purpose, namely thermal paste, and in its absence, thermal pads can do the job.