Elitebook 8440p very slow

[Splitair]

Hi.

My laptop has become painfully slow overall.

Can someone suggest any hardware upgrade options which will be compatible with this model?

Thanks. 

[WAWood]

@Splitair 

This issue is often due to a failing drive.

So, let's check that first, because if it is failing, it would need to be replaced and there is no point then in doing anything else until we confirm that.

If your PC is new enough to support UEFI, you can use these steps to test the HDD (Hard Disk Drive): http://support.hp.com/us-en/document/c00439024

If not, to check the HDD you have to follow these steps:
1) Press Esc key repeatedly, several times a second, while rebooting the laptop. Do NOT hold the key down, just press it over and over.
2) Eventually, you will see an HP Startup Menu
3) Press the Function key for testing the hard drive (usually F2) and let it run.

If the drive checks out OK, then report that and I can provide you options for reinstalling Windows on your PC.

Please note that if your model has an SSD instead of an HDD, these diagnostics might not work properly.

[Splitair]

Thanks for the reply. 

I followed the instructions on the link to test hdd, amd the result was 'Passed'. Although it took some time.