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Chkdsk hung

I want to know (before I do it) what will happen when I power cycle a netbook which is trying to perform a full disc check and is in Stage 5 (Verifying free space) but will not complete in much under 3weeks based on its reported progress rate.
When I restart the machine do I get the option to enter BIOS before it might try to restart chkdsk. Its a HP mini notebook with Win7 starter edition. I believe there is a disk check function from the BIOS so I was hoping to run that instead. And will I be able to skip past dskchk without surgery to the drive? I have read elsewhere that I might have to clear the dirty bit to stop chkdsk restarting. But I need to get to the disk to do that, right? So I could attempt a boot to exterrnal (USB) CD drive? Or will I get the option to skip dskchk by pressing a key before 10secs?
I have seen advice not to interrupt chkdsk but in this case its not viable. Running 36hrs so far and at 16%. Even the 16% includes the 12% counted for the first 4 stages, I think.
By the way there WAS an error reported in the file checking stage where it says it recovered an unindexed file. Don't know if this affected the situation or WHY its taking this long but that is something of a secondary issue right now...
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Thanks for the quick response - I will bite the bullet tomorrow and report. The system WAS working before I did this so the drive is not completely shot. But there were performance problems and a developing suspicion that all was not well with the drive which led me to start this process in the first place. I agree with your concerns about the drive integrity! Also that the behaviour of dskchk is most likely a further symptom of that disc problem. I have UBCD and a USB CD drive so I will wheel them into action...
>>  I have seen advice not to interrupt chkdsk but in this case its not viable  <<   so you answered your question already here
a few notes :
1- >>  I believe there is a disk check function from the BIOS   <<  normally, that is not a chkdsk, but a DIAGnostic - which i suggest you run in either case. Reason : the chkdsk points to a disk problem, and then you should ALWAYS run a disk diag, to be sure about the disk operating properly- guess what chkdsk will do on a malfunctioning drive?
2- chkdsk is not a diag, it checks the FILE SYSTEM (but it does sector verifying)
3- for running diags -download UBCD , make the cd, and boot from it
Here 2 links, one to the general site, and a direct link to the download
since the downloaded file is an ISO file, you need to use an ISO burning tool
if you don't have that software, install cdburnerXP :
For ram testing - run memtest86+ at least 1 full pass,  - you should have NO errors!
For disk Diagnostics run the disk diag for your disk brand (eg seagate diag for seagate drive)  from the HDD section - long diag !                              ultimate boot cd                        direct link UBCD

to be complete, here's how i handle bad disks :
I exited from the chkdsk run without obvious side effects (at least so far). Am now checking the disk. Outcome not known but thats not important. Just needed to get to the stage of being able to run effective diagnostics. I guess the earilier stages (when chkdsk is in the middle of file related operations - especially recovery) are when it is a worse idea to suddenly pull the plug...