Some things to consider:
- a fresh, clean install of W10 may fix some problems (but will mean that you'll have to backup your data so you don't lose everything).
- I wonder about compatibility of the system with W10. This is just a hunch, not a real diagnosis. But you should keep it in mind as you proceed with trying fixes.
My advice on compatibility is simple: You keep trying stuff until you get fed up, then you restore to the previous OS. If the problems go away then, it was a compatibility issue.
A little housekeeping work:
To stop Media Center tasks from running (and then failing) delete this registry key (as with any deletion, backup the key first):
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tree\Microsoft\Windows\Media Center
Once you've deleted the above registry key do the following:
- Go to the Windows\System32\Tasks\Microsoft\Windows folder and delete the Media Center folder (as with any deletion, backup the folder first).
- Then delete the Task Scheduler Library...Microsoft...Windows...Media Center task folder within the Task Scheduler (I don't think that you can back this up, but you can export the tasks individually).
The Admin log file shows the symptoms that we see when a well-used copy of Windows is upgraded to Windows 10.
There's a couple of things to try:
1) Uninstall your antivirus, then use the removal tool for it (there's a list of most of them here: http://www.carrona.org/avuninst.html ), then install a freshly downloaded, W10 compatible version. Some A/V have difficulties with the upgrade, so removing them and then reinstalling them will help how they run.
2) Download fresh copies of the latest, W10 compatible audio and video drivers for your system. Then uninstall the current versions from your system. Then install the freshly downloaded versions.
3) Get ALL available Windows Updates
4) Get ALL available, W10 compatible drivers/programs from the manufacturer's website. If some aren't compatible w/W10, check here about uninstalling them.
5) Get ALL available, W10 compatible drivers/programs for any add-on hardware and any software that you installed previously. If they aren't compatible, please uninstall them.
If this doesn't fix things, then post back so we can discuss the following options:
- continuing to attempt to fix this copy of the OS
- System Restore to a point before the problems started happening.
- Repair install of W10: https://www.winhelp.us/non-destructive-reinstall-of-windows-8-and-8-1.html
- Reset of the OS (considering both the "Keep My Files" and the "Remove Everything" options)
- revert to the previous OS (both at less than 30 days, and at more than 30 days since initial update)
- revert to the previous OS with another attempt at installing W10 (I don't recommend this)
- clean install of the previous OS
- clean install of the previous OS, then update to W10 (only needed if a clean install of W10 fails)
- W10 clean install
In an attempt to fix the explorer.exe error, please use this free program: http://www.nirsoft.net/utils/shexview.html
Disable (don't delete) all non-Microsoft extensions and reboot. Once you've rebooted, see if the error comes back.
If it doesn't, then re-enable things in small groups - so you can track down which extension is causing it.
Once you find out which one, uninstall the program that it belongs to.
The system is having problems with sleep transitions.
Please visit the system manufacturer's support website for your model.
Download and install ALL of the W10 compatible, updated drivers available there.
If W10 drivers aren't available, please post back here.
Your UEFI/BIOS (version 7.14) dates from 2011. Please check at the manufacturer's website to see if there are any UEFI/BIOS updates available for your system. If you are able to install the update through Windows (without booting from an external drive), then go ahead and update it. WARNING - if the computer might shut down during this procedure, please don't do it, as this may physically damage the computer and prevent it from booting.
Although you appear to have a reasonable number of Windows Update hotfixes for this version of your OS, please double check for any new Windows Updates. It only takes one update to cause a problem, so it's essential that you have all of them. The actual number is not important. Rather it's important that you checked manually, installed any available updates, and didn't experience any errors when checking or updating.