Deleted local disk permissions

[Mind1234]

After I installed win 10 yesterday, I was looking around and I noticed the windows.old file in my local disk. I looked online and saw that it was safe to delete it, but I couldn't because I didn't have permissions. So I followed a youtube tutorial on how to gain permissions, but I performed this on the entire c drive (note that this is my only drive). The video showed that I had to delete all the permission settings previously there. You can kind of see where this is going. So I did then I gave myself permissions. I immediately saw that win 10 started to not function properly. So I tried to re-add system and administrators to the drive permissions. Some of the win 10 functionalities returned and I thought that restarting my pic would fix the rest. But now after the win 10 logo I get a black screen and I can't log in. Please someone help me fix this.

 

[Samat]

You will propably need to reinstall Windows to fix all the file permissions properly. The proper way to remove windows.old and other files used during the upgrade is to run disk clean-up in windows (windows key + r and type in cleanmgr.exe, after it runs click on clean-up system files, you need to select what to remove by ticking on the corresponding lines).

 

[Mind1234]

You will propably need to reinstall Windows to fix all the file permissions properly. The proper way to remove windows.old and other files used during the upgrade is to run disk clean-up in windows (windows key + r and type in cleanmgr.exe, after it runs click on clean-up system files, you need to select what to remove by ticking on the corresponding lines).

OK I still have my win 8 cd, so say I make a partition on the drive and install win 8 on that partition, how would I be able to fix the permissions on the main partition?

 

[Samat]

I'd recommend backing up any important files and starting completely from scratch to avoid any problems down the line.

 

[Mind1234]

I'd recommend backing up any important files and starting completely from scratch to avoid any problems down the line.

You say backup files but I don't see how that is possible since I can't access my hard drive. I tried to just reinstall Windows but after the process it still gives me a black screen when I boot up. Tor be fair I did try to reinstall Windows while preserving my files, so do I just have to try a complete full reinstall? If so then please advise me as to how I can backup my files. I have some important files I don't want to lose. Thanks in advance.

 

[Samat]

If you have acces to another computer you could plug your hdd to that and copy the files. Otherwise your best option would be to use a linux live installer which can be run from the usb/dvd without actually installing and use that to copy the files from your hdd to a external usb drive or another hdd. Then you can do a complete full reinstall after you have backed up all your files.