message from Windows 7 system is unable to open the access control editor. invalid syntax

Hi, I recently bought this pc, asus n551jk, which came with windows 8.1, I switched to 10 windows because windows 8.1 give problems, so I had problems with windows 10 crashing on some games, so I decided to go back to windows 8.1 and all of a sudden I couldn't. don't know how windows.old has been deleted, but it wasn't the case to be found, and no, it wasn't a month yet since I went. After many crashes and intentions powerless to find a solution, I decided to go to windows 7. I installed windows 7 and had a multiboot windows option 10 and windows 7 successfully, but it was weird cos I just installed windows 7 on the c: drive, but now I had folders windows.old and windows.old000 on the c: drive and had also, folder windows on drives C and D, don't delete anything simply decided to restore my previous backup files, the files do not have restore to the usual places and it was all mess really, I had several repeated files, up to this point, everything worked perfect, so I decided to install updates and restart windows, after restarting, I realized I didn't have a multiboot option more, windows 10 had completely disappeared and had Windows 7 , and when I connected, I decided to get rid of some repeated files to free up space, and I noticed that I could not remove anything, when I clicked on delete, nothing happened, even no error message, nothing, nothing at all, I tried with several files and it remained the same. I looked for solutions on the net, tried to give me the privilege administrator cos it seemed to be the problem, then I noticed that I had 2 users, one of them which was 10 windows user and current user of windows 7, and the funny thing is that with the privilege of administrator is the user windows 10. but I can't access windows 10 more, then why? How is that possible? I have still two files windows.old, why have I lost access to the windows 10? It didn't remove boot options. then I went to windows.old000 and rendering account this is the folder that I had the privilege of administrator to the course, I could remove/change anything in this file outside of this folder, I couldn't do anything else, I could access the older records, but I could not change or do something with them and once again windows.old000 is on the c: drive, on which I have windows 7 installed. And why have I lost access to the windows 10 if I never deleted it, not even by mistake. and I've tried the command cmd / active: Yes NET LOG ADMIN and that I received was that USER cannot NOT BE FOUND. so I would be grateful if anyone can help cos im frustrated, I don't want to go back to windows 8.1, I have the drive, but its got a lot of questions. Thanks in advance-

Hello

Welcome to the Microsoft community.

Since the beginning of the question and not tried troubleshooting, there seems to be a lot of mixing upwards and there might be conflicts on Windows files for each installation. The best option recommended for everything what you back up data and start with the new facility.

However, you can refer to the suggestions posted by Shishira D and check if this may help.

http://answers.Microsoft.com/en-us/Windows/Forum/Windows_7-security/cant-open-access-control-editor-access-is-denied/0b938de0-620C-417f-a2b6-50a9c7f58766?DB=5

The steps include also the right command to activate by default. You can enable the default Administrator and check if you are able to access your data in the default administrator user account.

Hope this information helps.

Tags: Windows

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