Apologies if you've already tried this, but have you googled the problem (along with the make and model) in relevant forums? I've fixed my laptop a few times via them (in one case it needed a part replaced and there turned out to be an extended warranty). Although I agree the blue screen of death does not sound good - it's not a DELL is it? I know quite a few (inc mine) suffer from overheating due to a faulty part. Aside from that, just back up everything and then it's not the end of the world (albeit still very crap) if it does go.

Sorry you're here on your lonesome Jojo! Afraid my discussion days are still scarily far away so I can't contribute, but good luck!

SickNtired
You say you've lost friendships due to the phd, do you still have other friends or family who can offer you a listening ear and some support? How bad do you feel really? If continuing is genuinely going to make you unwell then it might be worth considering a visit to your doctor and a proper break. If you really don't want the phd then you can always quit, but it sounds like you're more worn down than actually wanting to chuck it.
If it is more that you just feel heartily sick of the whole thing, many of us feel demotivated and negative during the phd course, particularly towards the end when the pressure mounts and a thesis just seems an insurmountable goal. It can be gotten over (in fits and starts) and most people do get to the end eventually.
I'd second what the others have said, take a break and recover your sense of self. Perhaps bring a new element into your life that you feel promotes who you are outside of the phd (an evening class, weekly date with friends). Then, use mytomatoes or your own plans to set small achievable goals. I find that motivation comes only when I'm actually working, so I have to try and achieve something before I can find the will to really knuckle down. Try to encourage rather than berate yourself, you will have slow days and that's perfectly normal.

Negativelady you have to calm down! You're right that this is paranoia, people (with solid experience) are expressing confidence in your abilities and you should take the compliments as they're intended. The viva scares the crap out of everyone and it's natural for you to be worried, but your feelings are just that, worries. They aren't insights of great clarity and they aren't omens.
Take a deep breath and try to believe in yourself :-)

Mlis you've had such a rough time, please don't beat yourself up for not being able to "snap out of it". Some counselling qualifications really aren't worth the paper they're written on, and it sounds like your one didn't have a clue about depression. The number of half-baked people masquerading as therapists really makes me angry. If it helps to know you're not alone, I went to my new GP a few years back because my anxiety had gotten to the point I could barely function, I explained my history (serious mental health problems, long term hospitalization, etc) and she simply brushed my symptoms off as those of a silly girl who needed more to occupy her mind!

I think the others are right, the University is totally shirking its responsiblities right now and you should be getting a lot more from them. If you don't have a third party monitor of some sort then find out who is the new head of department and ask for a meeting with them. Take your doctors letter, the emails you've sent to your primary sup and explain that your secondary was never replaced. They don't have to attack your primary sup, but they should help you put together a plan for your return to studies, one that will get both you and the department the completion you want. In this case a new member of staff might actually be a good thing as you can make a fresh start. I know this must be really hard for you but don't give up, and try to take things one step at a time without panicking yourself over every ramification.

Crumpets with marmite and cheese are a brilliant winter snack, yum.
Sweet potato, peanut and chilli soup is very heartening (and easy). Other soups equally so.
Noodles - add cashews, chicken....and maybe sneak in some veg, all stir-fried up.
Come lunch time here I'm a big fan of the humble baked spud. Top with beans, tuna, cheese, etc.
Pasta with courgettes, garlic and lemon?
Could you bear cold veggies with a nice dip or some humous? Alternatively just stick a tray of winter veg in the oven with a little olive oil and slow cook until they're all caramelised.
Baked apples or bananas (with a little ice cream) are a good way to get more fruit, I do my apples with a dot of butter, some brown sugar and raisens - so comforting ona cold day.
Mashed potato is always a winner too, mix it with bacon and onion then fry as potato cakes.

......Can you tell I like food?

Oh but slizor, I do! It started as a joke but we later found out it was true, now he tells me all about her and how they've moved in together. It's actually rather cute.

When I was little my recurring dream was that I was a small daisy type thing in a massive patch of bare earth, and coming towards me would be a bulldozer......I was a strange child. Mostly though mine are just shapeshifting and utterly bizarre. I'm a little munch-monster so food could indeed be something to do with it.

Go Chrisrolinski Go!
Feel the force of phd.com willing you to the finish line 8-)

Hey Sneaks

Good to see you're still plugging away. I think I may need to mytomatoes it today, seemed to help me write last night (although it's slightly demoralising to see how few words I clock up per section). Today I'm balancing lab and written work, never makes for an efficient plan of action in my experience but so much needs doing.

Houses are such a terrible drain on your time aren't they? My head hurts just thinking of what needs doing back at mine :s Hope your plasterer behaves.

Algaequeen that's outrageous! "toss you aside" ?! Does he just think he's terribly witty?

My third sup was a total git, his response to "Welcome Prof X, how was your journey up?"
"Hmph, train, hmph, where's your toilet?"
He would insult my main sup, yell disgusted ciriticisms at us students, and generally be as obnoxious as was humanly posible.

Then one day, he became a different man. He started being polite, and helpful, and seeking us out in order to say "I'm not sure if I said, but you're doing just fine you know, really you're doing well"....... Yes, Prof X was finally getting laid.

If needed could you get an appeal on the basis that the external was biased (no examiner should say they "hate" a student's work) and even that the internal was insufficient?
It amazes me that such an unregulated system is allowed to mess students around in this way, every time it snags the uni just seem to look the other way. Is your supervisor being any help?

@Eska, I was quite intrigued by the Tom Ford one as well, be interesting to see what he's made.

I know what you mean about arty cinemas, there are some rather amusing customs (such as everyone staying to watch the credits as if there's a deeply meaningful message located within them) but overall it's just so comfy and civilised. Plus I can go there for a little escapism on my own and no one thinks anything of it. At Vue there are always sweet-eating, seat-kicking rabbles of children, and you can't take a nice glass of wine in.... so many crimes.

I was thinking of the cinema tonight, but I don't know that I can face the chav-tastic epicentre that is a Vue cinema. I want to cosy down in my usual arthouse one but they haven't got anything I'm all that keen to see tonight. Anyone got a current recommendation that makes the Vue experience worth the pain?

Don't worry Maxipat, as moonblue says, it's a normal response to the first few months. A PhD is pretty much a long run of realising how little you know, and it's never worse than at the start. As you get into it your topic will narrow, your knowledge will widen, and before long you'll feel quite at home in your little academic hovel! Just keep plugging away, but also keep an eye on your aims so you don't stray too widely from your topic (literature can lead you down ridiculous rabbit holes).