macbook late 2009, slow/doesn't work

[Mauroausf]

Hello everybody, till 10 days ago my macbook worked fast and well, now it start very slow and crash after some operations or 1-2 minutes. I'm from Italy but now I'm in Prague for studying for 6 months, and I don't have the installation dvd with me. I tried to bring it to a local apple store but they did not find any problem ( I really don't know how !). However, the macbook still doesn't work and I try a complete hardware test and this is the result: 4SNS/1/40000000: Th1H- 75.204

Anyone can help me ? Thank you so much and sorry for my incorrect english.

 

[Samuelsan2001]

Firstly try repairing disk permissions in disk utility and restarting it.

If that works all good, if not you may be looking at a dying HDD (if it's the original from 2009 then thats about right for the life of it).

If it's still bad then get an external drive and back up all your important stuff if you haven't already, and consider an SSD as a replacement.