seems like you guys are doing everything to avoid a straight answer . so here we go again .update,then reboot to blue screen saying ran into problems . what do i do? after 3 days finally got it to show a cannot find bootmgr,if only for a fraction of a second . come on , i am disabled and make less a month than most do in a week . so the 100+for w8 was hard to swallow now this . what can i do . hp pavillion p6510 f cant get past the loop please guys ,justonce help me out .

1. Try to get iinto F8 boot menu and start in safe mode.

2. Do the same as in 1, but try the Last Known Good....

3. If nothing helps try to boot from Live CD (Linux) and export minidump file for analysis. Do minidump analysisi in another computer (WinDBG)

4. If 1,2 and 3 do not help, address your problem to HP support/forum

5. If neither (1,2,3,4) helps, backup data (using 3) and restore from backup, or restore DVD or make clean install. Prior this check you HDD and RAM.

Regards

Milos

PS: It is helpful to give information on what you did before this disaster happen.

Hi,

Please remove all external devices to boot again.

Have you had any recovery disk or iso of Windows 8 or Windows 8.1?

If so, try following steps to create recovery drive:

Create a USB recovery drive

http://windows.microsoft.com/en-us/windows-8/create-usb-recovery-drive

or

Create Media to Run Push-Button Reset Features

http://technet.microsoft.com/en-us/library/hh824894.aspx

Then, try to boot PC in WinRE, and enter command prompt to run following commands:

bootrec /fixmbr

bootrec /fixboot

bootrec /scanos

bootrec /rebuildbcd

Detailed steps, please refer to this link:

Windows 8 Boot Issues? Try Fixing the Master Boot Record (MBR) or Boot Configuration Data (BCD)

http://www.techspot.com/guides/630-windows-8-boot-fix/

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Keep post.