windows 7 64bit,slow startup and freeze,system restore corrects but...

hi,new user here, using windows 7 for two years now had very few problems until last few months....

symptoms started off as just a really slow boot time like 3-8 minutes,then as time goes on it has started to freeze up rather than let me take control giving no option other than to turn off via the power button....i then start up in safe mode do a system restore and im off again, well until two days later when it crashes again and needs restoring over again...

bit tiresome to say the least hence being here...

system is acer aspire 7551,amd athlon IIp320 dual core 2.10 ghz,3gb ram,64 bit....

running avast antivirus free and advanced system care all scans reveal no threat!

not really sure what else to say,its been great its now not lol

any help apreciated

dave

its ok i think i fixed it, i had pup.funmoods virus/malware thingy....

nasty bit of kit by internet reports feel like i may have dodged a bullet...

well fixing it was a false alarm,opened up my computer this morning and same story,needs a system restore...

so help needed please...have no clue what to try next....

anyone ?

i have now got malwarebytes anti malware, its trapped this funmoods again but what should I do next,last time i selected them all and deleted but then this morning it was back...so should i not delete ? leave it in the malwarebytes program?

the options i have are 1 remove selected 2 ignore 3 save log.....yesterday...it had a delete option but not today....

was that funmoods tricking me into letting it lose again ?