I thank you for support up to now.
But I encounter more problems. Reason not clear so that U must stop here and now !
History:
The accused system works except the allegedly corrupt files (even after replacement from 2d system 7 from double boot).
But more problems occur:
Today I startet the 2d 7 Ultimate system. No problems. But suddenly I got messages the SSD (1 year old, Samsung Evo 1 TB, fine)
is not initialized !
I shot the system down.
Then I took my 2d SSD Crucial MX500 1 TB with windows 8.1 and 10 as double boot.
Start problems though updatet and full service days before. Chkdsk running.
Then 10 start problems even after and automatic repair.
Then 10 starts.
I put Evo with double boot extern at USB 3.0 adapater.
Really partition table not there, testdisk says no endmark 0xAA55 !
Starting recovery expert from Acronis DD. Finds ext4 partitions up to now which have never been there !
From the beginning when bought at Saturn double boot 7 system cloned from a HGST 1 TB !
All in a notebook from Medion, office notebook, nothing special.
Only for work, internet and so on. No gamer or such things. Simply for work.
So why initialization defect (MBR) ??
And starting the 2d SSD also start problems though not there days ago and not used in between ??
With this notebook I never had problems with HDDs as HGST 1 TB one for system one for data every 1 TB or before Western Digital Black
750/500 GB. HGST 1 TB is = WD Black 1 TB only other label.
So problems start when using SSDs, though they should work.
Much time before I used for 7 double boot a Samsung QVO. Several times MBR not there = not initialized.
So I changed that at Saturn to Evo and then ok.
For data I exchanged HSGT 1 TB to Crucial SSD MX500 1 TB.
Problems therefore startet with Samsung QVO 1 TB.
Additionally I used an extern enclosure for 2,5'' from Conrad Electronics USB 3.0.
Several times I encountered MBR deleted / not initialized with this enclosure.
But after eject and connect again all ok !
Chip is from Jmicron in this enclosure.
I asked me time ago if there is a boot sector virus or sth like that ! But did not find anything (Kaspersky IS plus rescue DVD).
Now the above mentioned problems with allegedly defect system files.
Started with manipulation of installer folder, then copy back, then full recovery of 7 system,
after that partition table defect.
Wild repair efforts at the Evo SSD until success.
Then suddenly PT at Crucial MX500 defect, also wild repair efforts.
On this data SSD 2 partitions called data 4 and data 5.
Data 5 PT found by Acronis and restored, Data 4 not found so restored full partition from backup.
Then all seems ok, except the allegedly defect system files.
But can they be defect after full copy of installer folder from a backup and,
2d step a full 7 system recovery ??
I think no !
And now in timeline full partition table of the 7 double boot system defect !
So I took Crucial with 8.1/10 and start problems !
Now ok, but Evo is empty because of PT !
Recovery now running at started 10 system and Evo connected by USB 3.0 adapter seeking by Acronis Disk Director.
Finds ext4 from Linux never been there up to now.
All this is a thriller for me and a bit too much because I have to work and lots of other problems here in Germoney.
I ask me if this notebook is not capable to use SSDs first.
Though Medion said no problem.
Second is there a correlation to the external USB 3.0 enclosure with Jmicron chip (which has lots of problems as I found in internet) ??
Because with this enclosure MBR problems / no initialization started when using Samsung QVO 1 TB.
Is it possible that problems of an external USB 3.0 enclosure of a bad chipset transfer by USB 3.0 to a SATA notebook ??
Can there be a special virus though nothing found ??
Electrical problems though nothing to be seen up to now ?? (NB is cheap but works fine)
So the "defect" 7 system called 7 1 by me is years old updated and has some minor problems before.
7 2 the second from double boot is newer and no faults.
Although I tried an inplace upgrade at both to refresh but both did not work ! Stopped at different times at about 70%
and then restore old system.
8.1 and 10 double boot I only used rarely to see how the newer MS systems work.
I have a HDD with Linux too, so work and general function is no problem.
The 2 SSDs have a configuration with 2 MS double boot systems, plus 2 program partitions each, plus 3 data partitions.
Data SSD from Crucial has 2 data partitions.
So the whole system seems to be a bit complicated but works since years.
I splitted page file in the systems to 2 or 3 partitions each and reduced size of hibernation file away from the standard.
I have several external HDD enclosures for 3,5'' and 2,5'' with USB 3.0 with total capacity of 14 TB for Backups and data.
So conclusion:
I do not focus on allegedly defect system files in one 7 system now !
This seems to be a special and "private" problem which can perhaps be fixed sometime or I really have to make a new installation.
(I am so crazy to try to fix problems for a long time even in old systems before and avoid new installations because they take
a lot of time with all browsers and special features).
Focus is at MBR, partition table and perhaps a defect of Jmicron chipset at external 2,5'' enclosure
because with this MBR / initialization problems start !
You need not answer to that !
It is even a bit too much for me for a PC only is a tool for my work and nothing more !
So I wish you a good and better time and thanks up to now !
It seems I am part of a thriller or I have some ghosts in my flat.
This fits to my life before in society, profession and private.
More problems than others, more hatred seen than others even in my church,
though I work fine in my profession 70 h a week and lots of hours private after