actually i ve got the chkdsk problem as well...
that time, i jzu boot into safe mode, then restart into normal mode, the whole chkdsk is skipped...

I did that but it didnt owrk for me. I went to safemode but I could not get into Windows either. It was kind off freaking me out. I need my machine for some serious work now but some time next month, I will back up everything and reformat the entire thing. Quite problematic.
Usually, if my experience with tech service in this country is anything to go by, if your problem is obvious (GPU failure, LCD failure), they will fix it for you easily and swiftly.
When you get something like this, CHKDSK, blue screen, HDD corruption, RAM corruption, monitor power problem, all they can do is keep asking you useless questions, asking you to "perform a recovery", or maybe after a hell of a long time they'll change the motherboard, while the problem still persists.
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About Dell warranty, the only difference between XPS Premier Service and Dell Care Premium is the extended service hours for Dell Care right? With XPS warranty it is still on-site and covers everything apart from accidental damage (which is covered by Complete Cover)?
Some of the staff told me it's International warranty by default, some told me I have to purchase 3 years. I plan to purchase 3 years anyways, but only if it is definitely International and On-site since I'll be moving out. Earlier a link posted here showed 3-year Next Business Day (NBD) warranty for Inspiron/Studio laptops was International. The problem is Studio XPS is not on the list, and the warranty page that talks about XPS Premier Service and Dell Care does not mention International warranty, only support for traveling people (which is applicable even for 1-year warranty I think).
What I want is the service they offer in MY (on-site service, with parts and labour, and replacements, for manufacturing defects) in another country (covered by Dell of course).
Can anyone confirm this?
I cant comment about the warranty as I dont know also. I suggest you write them a mail and ask. Better to get a black and white for these sort of thing since you are moving out.