Fresh install of windows

Hello
My pc is not running fast anymore i would like to get a new system and fresh hard drive with no data on it.
I found on the internet that deleting manually everything is not always the best option but so is formating because it overwrites files does it mean there are still there and will cause my pc to slow down even if I do boot option then format 2 drives and install windows from flash drive? What is best option to get clean windows and get rid of all apps and files?
Also, there is option build in windows in : settings then recovery (reset pc) does it clean hard drives itself or also overwrites?
What should i do ?
I've heard that wiping drive is best option but what if i do that with hard drive with system on it will it crash?
I have windows 10 newest update.
Please help me i would really appreciate it
Thanks in advance!

If you do a clean install of Windows, an early step is to delete ALL partitions on the drive.

That will leave the drive as 100% "unallocated space". That's the only "wiping" you would have to do and takes only a few seconds.

Windows will then create brand new partitions and format them as it sees fit later in the installation process.

That's the best you can do and assumes your hardware is in good shape. If you have hardware issues, it could be that your PC will still be slow after the clean install.

Of course, you would need to back up all of your personal data first.

If your not planning to sell the PC or change the drive these are options:
a) reset save files
b) reset remove files
c) custom install
d) clean install

Reset Windows 10
Custom Install Windows 10
Clean Install Windows 10

The cleanest option is to overwrite the drive with 0 /1 followed by a clean install.
This is rarely necessary.

Consider a clean install:
Clean Install Windows 10

ignatzatsonic said:

If you do a clean install of Windows, an early step is to delete ALL partitions on the drive.

That will leave the drive as 100% "unallocated space". That's the only "wiping" you would have to do and takes only a few seconds.

Windows will then create brand new partitions and format them as it sees fit later in the installation process.

That's the best you can do and assumes your hardware is in good shape. If you have hardware issues, it could be that your PC will still be slow after the clean install.

Of course, you would need to back up all of your personal data first.

Boot my PC and when i will be in Windows Setup delete all Partitions until I have left only 1 "Unallocated space"? What if i have SSD M2 and other hard drive normal SSD will it find and locate automatically 2 hard drives after deleting all partitions right away i get to desktop? Or will i have to set it up?What about system does it get applied to do the hard drive it was on before or randomly ? Becouse now i use SSD m2 only for sytem and small programs and normal SSD for games and large files and programs

Smartest thing to do is disconnect any drive that you DON'T want to receive any Windows files. In your case, disconnect the SSD and leave the m2 connected. All Windows files will land on the m2.

After Windows is up and running, re-connect the SSD and do as you wish.

ignatzatsonic said:

Smartest thing to do is disconnect any drive that you DON'T want to receive any Windows files. In your case, disconnect the SSD and leave the m2 connected. All Windows files will land on the m2.

After Windows is up and running, re-connect the SSD and do as you wish.

So deleting all partition will work only for M2 and then when i make new partition it will be for M2 only with system.
What if i connect SSD back to PC how to delete partitions(content files etc) on it when i already installed system on M2?

MatRick said:

What if i connect SSD back to PC how to delete partitions(content files etc) on it when i already installed system on M2?

You could boot from the m2 after the clean install and after re-connecting the SSD. Then go to Windows Disk Management and delete all partitions from the SSD. Then make new partitions on the SSD as you see fit.

Clean install Windows on the preferred drive with all other drives detached or removed.

Then connect any drive that you want to use or clean.

If you decide to clean other drives then use command prompt: clean
(make sure you identify the proper drive number)

Code:

diskpart
lis dis
lis vol
sel dis 0
det dis
lis par
sel dis 1
det dis
lis par

ignatzatsonic said:

You could boot from the m2 after the clean install and after re-connecting the SSD. Then go to Windows Disk Management and delete all partitions from the SSD. Then make new partitions on the SSD as you see fit.

So to sum up disconect SSD and leave M2 in then delete partitions and clean install windows when i get to desktop connect SSD go to Disc Management and delete volume with SSD then click on SSD and shrink volume? and thats it? That will make another partition for SSD?

MatRick said:

So to sum up disconect SSD and leave M2 in then delete partitions and clean install windows when i get to desktop connect SSD go to Disc Management and delete volume with SSD then click on SSD and shrink volume? and thats it? That will make another partition for SSD?

Not quite:

Disconnect SSD.

Boot from your installation media to begin install on the m2.

Delete all partitions from the m2 during the install process. Let the install finish. It will reboot a few times.

Shut down and reconnect the SSD.

Boot from m2 and go to Windows Disk Management.

Locate the SSD there and delete all partitions from it. (I assume you don't need anything on the SSD).

The SSD is then 100% unallocated space. It has no volumes to shrink.

Make new volumes on the SSD as you see fit while still in Windows Disk Managment. However many you need.

That should work unless you have some weirdo complications not yet mentioned.