With laptops there are only two viable options. First would be replacing the HDD with a SSD. Second would be to max out your RAM, to what ever your Dell spec will allow.

 

what would be the best option considering my old pentium processor. i guess tha 8gb ram wont affect the speed much?

 

We need more information about your Dell Inspiron 3552 laptop.
What is the exact 7-character service tag number on it?

-------------------------------------------------

 

D7X6MJ2 I don't have a budget to buy a new laptop so every advice that will save my money will be great and helful.Thanx

 

You have THIS Dell Inspiron 3552 Notebook PC.

It was purchased in September 2017 in India and came with the Ubuntu Linux 14.0.4 operating system.

It came with these hardware specs:
Intel Pentium N3710 1.60 GHz quad core processor (turbo speed is 2.60 GHz)

4 GB DDR3L-1600 RAM (has 1 SODIMM slot and supports 8 GB)
500 GB SATA3 5400 RPM hard disk drive
Intel HD Graphics 405 graphics
Realtek ALC3234 high definition audio
Dell Wireless 1707(Qualcomm 9565) 802.11b/g/n wireless
4-cell 40WHr battery
45W power adapter

-------------------------------------------------

You said it's running Windows 8.1.
Its support site says it came with Ubuntu Linux 14.0.4, so Windows 8.1 was obviously installed in it afterwards.
You might consider doing a clean install of Windows 10 in it and getting a fresh start.

It came with a single 4 GB module of DDR3L-1600 RAM.
You might consider replacing it with a 8 GB module.

It came with a 500 GB hard disk drive.
You might consider replacing it with a similar capacity solid state drive.

The combination of doing all of the above will greatly improve speed and snappiness.

Note: The processor is not upgradeable to a faster model.

--------------------------------------------------

 

You have THIS Dell Inspiron 3552 Notebook PC.

It was purchased in September 2017 in India and came with the Ubuntu Linux 14.0.4 operating system.

It came with these hardware specs:
Intel Pentium N3710 1.60 GHz quad core processor (turbo speed is 2.60 GHz)
View attachment 279670
4 GB DDR3L-1600 RAM (has 1 SODIMM slot and supports 8 GB)
500 GB SATA3 5400 RPM hard disk drive
Intel HD Graphics 405 graphics
Realtek ALC3234 high definition audio
Dell Wireless 1707(Qualcomm 9565) 802.11b/g/n wireless
4-cell 40WHr battery
45W power adapter

-------------------------------------------------

You said it's running Windows 8.1.
Its support site says it came with Ubuntu Linux 14.0.4, so Windows 8.1 was obviously installed in it afterwards.
You might consider doing a clean install of Windows 10 in it and getting a fresh start.

It came with a single 4 GB module of DDR3L-1600 RAM.
You might consider replacing it with a 8 GB module.

It came with a 500 GB hard disk drive.
You might consider replacing it with a similar capacity solid state drive.

The combination of doing all of the above will greatly improve speed and snappiness.

Note: The processor is not upgradeable to a faster model.

--------------------------------------------------

Thank u so much for ur advice sir! : )

 

You're welcome, and good luck.

 

Sorry im asking a lot of questions but i have a problem, based on my budget i can afford only one right now, either 8gb ram or add an ssd(by replacing dvd drive) and install os in it. What would u suggest sir? and sorry again : (

 

If you get an SSD for the OS you will probably have to remove the present HDD and put the SSD in it's place, because you probably won't be able to boot from a drive you replace the DVD with, although it should work ok as a data drive only. I tried this myself on an old Dell Inspiron 1545 laptop and using a caddie with HDD to replace the DVD worked but I couldn't boot from the drive in it.

Having said that I think an SSD is the better upgrade for you.