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Screen blanks then reapears later during boot on windows 10 fine with windows 7

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jkeeley Posts 2 Registration date Tuesday 19 February 2019 Status Member Last seen 20 February 2019 - 19 Feb 2019 à 22:16
 jkeeley - 22 Feb 2019 à 18:01
I have a hp dv6 i5 1TB hdd laptop that first came with windows 7 pro. never had a problem except for updates, all fixed.
in late 2018 I upgraded to windows 10 64 bit pro. I got drivers to suit from hp along with a bios upgrade.
from the first restart this problem appeared. the sequence is:-
hp start up screen ok. windows logo and dots circle running for 5-10 seconds, then screen blanks out for 45 to 70 seconds, lots of hdd activity, then screen comes back on to logo and circle for a few seconds then the logon screen. from this point all works just fine.
if you do a cold start the same sequence but the blank screen is longer than restart.
if you do a safe mode then the blank screen is only a few seconds.
I have rebuilt the laptop a number of times, with and without drivers, different hard drive, different copy of both drivers and windows 10 pro all exactly the same results, re loaded windows 7 perfect.
tried 32 bit version of 10 and still this blank screen. now back to 10 64bit pro as i need.
any ideas as to what i have wrong. please
i even tried a second hand mother board and a new ssd drive..... the ssd is faster but blank is still the same.
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Blocked Profile
20 Feb 2019 à 07:54
What is the load level of your copy of ten? Is it possible it is applying updates?
jkeeley Posts 2 Registration date Tuesday 19 February 2019 Status Member Last seen 20 February 2019
20 Feb 2019 à 17:14
thanks for a reply, the level is ver 1809 updated to 19/02/19. this laptop is in daily use online. drivers last updated mid January. (Microsoft).
Blocked Profile
20 Feb 2019 à 17:21
I had an update that ran for 24 hours when I first applied Windows 10.

Get to a desktop, open up a CMD prompt with admin privilages, and SFC /SCANNOW

Post back with results. SFC will check for missing or corrupt OS files.
jkeeley
21 Feb 2019 à 19:26
Verification 100% complete.
Windows Resource Protection did not find any integrity violations.
was the message that came back.
I then did a restart and still got the blank screen but it was down to 40 seconds, slightly better. but not removed.
it at least helped thanks.
Blocked Profile
21 Feb 2019 à 19:51
NOw, see how the disk is, run defrag!
jkeeley
22 Feb 2019 à 18:01
defrag analyze said 1% fragmented defrag not required. did it anyway back to 65 secs this restart after defrag. disk health check reported no errors or faults.