Windows 10: Safe to Delete New Windows OS? In Space Sniffer?

So a few weeks ago Windows 1903 tried to install on my PC but thankfully after a few days the Restart option went away and I didn't have to install it. But the New OS is still taking up space on my SSD. Is it safe for me to delete. Just to let you know my Windows update screen gives me the Download and install option for 1903 again. So that is fine.

:)

 

Dual boot: Safe to delete 1 OS ?

Go to MSCONFIG (Win key+r, type in msconfig)... will get something similar to this:


Delete the OS you no longer want. Go to Disk Management,

and on the OS drive, right click the partition of the unwanted OS, and delete. Now unallocated , free space.

EDIT: BACKUP FIRST!! Just good practice.... And after the steps above... reboot...

 

Disk space - Space Sniffer Access is denied - Code 5

I have a acer 5552 running windows 10 although this problem was there under windows 5

I ran space sniffer and this shows 106.2GB of unaccessable space. The space sniffer console shows the files that make up this space. Here is an example

WARN 11:18:54 - Unable to examine C:\$Recycle.Bin\S-1-5-18 (Access is denied. - code 5)

WARN 11:18:54 - Unable to examine C:\$Recycle.Bin\S-1-5-20 (Access is denied. - code 5)

WARN 11:18:54 - Unable to examine C:\$Recycle.Bin\S-1-5-21-1762652693-428376908-199865491-500 (Access is denied. - code 5)

WARN 11:18:55 - Unable to examine C:\$Recycle.Bin\S-1-5-21-4284531438-3182828447-3916045307-500 (Access is denied. - code 5)

WARN 11:18:55 - Unable to examine C:\1fa3c87dbfc77f636413226b6b67a855 (Access is denied. - code 5)

WARN 11:18:55 - Unable to examine C:\6d694d1fcef5cc1966113b3fd884\mousekeyboardcenter (Access is denied. - code 5)

WARN 11:18:55 - Unable to examine C:\6d694d1fcef5cc1966113b3fd884\prereq (Access is denied. - code 5)

All the files end with hte Access is denied - code 5

Can I delete these to release disk space or is there anything else I can do ?

Thanks

 

Can I safely delete certain partitions?

All the partitions to the right of C:\ can be safely deleted. I noticed you have some substantial unallocated disk space that you should try recovering.

After deleting the suggested partitions, the Volumes you deleted will now appear as ‘Free space’, you will also notice that the disk icon no longer appears in the list of volumes.

Right click the Free space partition, and click Delete, click Yes on the Disk Management warning that appears.

The volume will now appear as Unallocated. Our next step is to merge back that unallocated free space with the system partition (C. Right click the System volume then click the ‘Extend Volume’ option on the contextual menu, click ‘Yes’ when the warning appears.

A wizard will now begin that will guide through the steps to merge back the unallocated space with your system partition.

The wizard provides a simple procedure to merge back the unallocated space with the system drive. Once you have selected the space, click Next, at the end of the wizard, you will see the amount allocated.