laptop upgraded to 10 is very slow now. install SSD?

I'd go with 16GB and put the rest of the money into a SSD. Bigger bang for the buck.

As for system, info, see here: System Specs - Fill in at Ten Forums - Windows 10 Forums

Edit: moved this post to BSOD thread
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Replaced HDD with SSD and did a clean W10 install. SSD faster by a multiple.

Upgraded to 8GB RAM (max possible on the E5510). Ran a couple of memory tests and all OK.

Now customizing to suit my work style. So far have had to use Google to figure out how to do the most basic things that are second nature through Win 7 and probably 8.1. Everything seems to be either renamed or moved or both in Win 10. Oh well, I'm getting there.

However occasionally the computer throws up a screen with "WHEA Uncorrectable Error" message and reboots. After it reboots, it runs OK for an indeterminate period then repeats

Have updated drivers (which were all up to date), and run several diagostic tests including Windows and Iolo. No
related errors reported.

Has anyone run into this after upgrading to 10?

Are there any dumps in C:\Windows\minidump? If yes then start a thread here, including link to this post.
BSOD Crashes and Debugging - Windows 10 Forums

Please read and follow the instructions here: Blue Screen of Death (BSOD) Posting Instructions