After I've deleted/fixed some values following a HJT scan, they re-appear immediately. Why won't they disappear? They are remnants of a McAfee installation and I'm sure they're interfering with my browser.
Grezza,please beware HJT is a very powerful tool and should not be messed with unless you are absolutely positive you know what you are deleting.
Ive seen pc's needing a recovery after some have messed with the scan results.
mobileman1953 advice is sound and totally recommend you follow it.Do not keep running HJT and turning off system restore (maybe to late) let the experts at Malware Removal advise you of the correct procedure needed.You may have have to wait a little while as im sure they will be busy,but will get back to you.
This is only advice,as ive seen this tool in action and can do a lot of damage in the wrong hands.
Couple of links that may help you with the removal of Mcafee,its best removed in the correct order: