Win 8.1 boot issues

Hello.

I have an issue since few days with my Windows 8.1 Computers.
When I try to boot windows 8.1 it shows "please wait", "diagnosing your pc" than the Recovery screen shows up: “It Looks like Windows didn`t load correctly”. " see advanced repair Options" or restart the pc.

1) If I choose see advanced repair Options - troubleshoot - advanced Options - Startup repair the Computer reboots -> "diagnosing your pc" -> Startup repair couldn’t repair your pc -> shutdown :
Then I Switch on the Computer again and without any error the Computers starts normally
If I restart the Computer again it starts without an error again, but if I restart the comp once more, I have the same issue like i descripted above.

2) If I choose "restart" instead of "see advanced repair Options" the Computer boots without an error message.(Till i make a reboot again)

I reinstalled the Computer, made necessary windows updates, installed few apps, Office and deepfreeze.
No issues the next 3-4 restarts but after few times more the same error occurs.

I made an Image of the HD and put it on a new HD, same issue after few restarts - no matter if deepfreeze is activated or not.

srtTrail logfiles :
Startup Repair diagnosis and repair log
---------------------------
Last successful boot time: ‎10/‎7/‎2015 10:20:02 AM (GMT)
Number of repair attempts: 1
Session details
---------------------------
System Disk = \Device\Harddisk0
Windows directory = C:\windows
AutoChk Run = 0
Number of root causes = 1
Test Performed:
---------------------------
Name: Check for updates
Result: Completed successfully. Error code = 0x0
Time taken = 0 ms
Test Performed:
---------------------------
Name: System disk test
Result: Completed successfully. Error code = 0x0
Time taken = 0 ms
Test Performed:
---------------------------
Name: Disk failure diagnosis
Result: Completed successfully. Error code = 0x0
Time taken = 16 ms
Test Performed:
---------------------------
Name: Disk metadata test
Result: Completed successfully. Error code = 0x0
Time taken = 0 ms
Test Performed:
---------------------------
Name: Target OS test
Result: Completed successfully. Error code = 0x0
Time taken = 125 ms
Test Performed:
---------------------------
Name: Volume content check
Result: Completed successfully. Error code = 0x0
Time taken = 375 ms
Test Performed:
---------------------------
Name: Boot manager diagnosis
Result: Completed successfully. Error code = 0x0
Time taken = 15 ms
Test Performed:
---------------------------
Name: System boot log diagnosis
Result: Completed successfully. Error code = 0x0
Time taken = 0 ms
Test Performed:
---------------------------
Name: Event log diagnosis
Result: Completed successfully. Error code = 0x0
Time taken = 16 ms
Test Performed:
---------------------------
Name: Internal state check
Result: Completed successfully. Error code = 0x0
Time taken = 0 ms
Test Performed:
---------------------------
Name: Boot status test
Result: Completed successfully. Error code = 0x0
Time taken = 0 ms
Root cause found:
---------------------------
Boot status indicates that the OS booted successfully.
---------------------------
---------------------------

Any suggestions?

First let me say, I'm a Computer Tech, so I see more PC problems than the average user.
Lately I've had boot failures on two of my 11 Desktop PC's. One was caused by a Power Supply that had several voltages that were out of spec.
A new PSU solved that problem. (but, without a PSU tester, I probably would not have caught that one)

The next boot failure was due to one bad RAM stick, out of four installed. When I pulled out the pair of sticks that contained the bad one, the PC booted up normally. Running "Memtest 86+" from a boot disk, quickly identified the bad ram. I replaced the bad ram and that PC was quickly back in service.

All too often, people think that Windows is at fault, when actually it's a piece of hardware. I've even read posts, in the past, where someone has reinstalled Windows to fix a problem that wasn't even caused by Windows in the first place, only to still have the same problem.

As a technician, I learned years ago to not just jump on the OS as the problem, but check the hardware first.

Just a thought

TechnoMage

Hey,

thanks for your reply but i already checked the harwade with diagnostic tools. everything ok except a HD warning, thats why i replaced the disk - without success.

cku