If you are having any issues outside of your own users folder e.g. can't run any files without admin access (some apps may need to submit log files in your C Drive but can't gain permissions) or if you can't download and save any files in your C Drive. You need to change your folder permissions and add a new instance where YOUR user account has its own permissions.
Firstly: Go to the folder in question (in my case I selected the whole drive itself)
- Right click the folder
- Select Properties
- Select Security
- Select Edit under the Group or user names section
- Select Add under the Group or user names section
- Select Advanced
- Select Find Now
You will now see a load of Search Results, you want to find the name of your username/name (it may also highlight your email if you linked it)
This will now add your own User as a Group.
You should now return to the Permissions for (folder name) and you should now see your own name as a class you can give permissions to.
- Select Full control
- Apply and confirm these settings
You may still receive a lot of errors, just continue to click any Yes or OK until they no longer appear, if this persists for at least a minute, you should be fine to cancel until this window is fully closed and is no longer running.
You settings should now be applied and you should hopefully now be able to save any files/run any files in your drive/folder without hassle!