'Battery Alert' appears before the 'press 'ESC' key for Start-up menu.', however, ' Cooling Fan Alert' appears after 'press 'ESC' key for Start-up menu.'

Is the cooling system that came with your laptop an assembly and can just the fan be removed from the assembly and replaced in the assembly with the fan the merchant has for $50.00 ?

Thank you so much for being patient and continuing replying to me.

We've bee here in Yemen experiencing high ordeals for about six months since the Saudi Arabia and their alliances have been bombing Yemeni lands.

So, there is no spare parts in the local Yemeni markets at all. Also, shipping to Yemen right now is risk. 

For your question Yes. The cooling system that came with my laptop an assembly and can just the fan be removed from the assembly and replaced in the assembly with the fan the merchant has for $50.00 ?

Look at these screen shots of my my existing old cooling system(fan, heatsink)

I hope you would confirm for me that you could see the screen shots posted here?

My cooling system while my old fan is bolted in the heatsink.(The first face)

The second face.

The fan is removed from my heatsink.

This is the new fan merchant would be selling  me for $50. (NOTE: I have returned the fan back to the merchant for about two months, although I don't know if I can find it now with the same price or not)

Finally:  A Yemeni laptop technician told me that any brand of thermal compound could be applied.

 However, you said Can't read the brand of paste, photo too blurred.

So, what brands of thermal compounds are there in the markets? I am expecting that 'Silicone' is the brand of thermal compound I have. Also, I know another one which is sliver. Are they brands or not?

What more I told about the thermal compound I have applied are:

The  properties of the silicone compound container written on the bottle of thermal compound are 'high conductivity, low bleed, Stable at high temperatures"

Is the cooling system that came with your laptop an assembly and can just the fan be removed from the assembly and replaced in the assembly with the fan the merchant has for $50.00 ?

The fan the Yemeni merchant sold me for $50 might cost him just $3.

It is not an entire fan/heatsink assembly. It is just a single fan.

No such another single fan I found in another merchant in Yemen sold cheaply

Then I suggest you replace the fan if you are confident you have no issues with applying the thermal compound.

In my country, I don't know if I can find another brand  of silicon that has good reviews or not. What about applying the same silicon compound I have again with the way you have mentioned? 

If that is all you have then use it.

Also, I don't know what is Isopropyl Alcohol (rubbing alcohol) and white coffee filters, although I googled Isopropyl alcohol, and how much do they cost?  

Then use some type of cleaning fluid and cloth that does not leave any lint or oily film on the CPU.

I removed the old thermal compound with applying small amount of the new silicon compound, and then I wiped it.

Not a good means of removing the old thermal paste, remove the old thermal paste first and then apply the new paste.

Thanks a lot,

As you know that getting to the fan/heatsink will require me to dismantle many parts. So, you think that applying a thermal compound again from the same kind I have already used would make difference? Or new fan diffidently needs to be installed. Even I don't know if a new fan sold for $50 would solve the issue or not.

1- You've been talking with my as though did not apply any thermal compound before, I applied silicone thermal compound  and after removing the old one by removing it nearly completely.

Not a good means of removing the old thermal paste, remove the old thermal paste first and then apply the new paste.

I only applied new thermal compound on the old one to let old thermal be wet. So, I could remove it easily with a hard cloth.

I applied a dot of fresh paste to the center of the CPU and GPU, and spread it.  The method I go by is slightly bigger than a grain of rice but smaller than a pea. Then, put it back together**.**

However, as I said,

1- the error 'the system has detected that a cooling fan is not operating properly' still appears to me.

2- the temperature is still high.

3- the error, which is related to discrete AMD GPU, and not CPU, still sometimes appears to me.

Also, the temperature is still high.