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How do I use Diskpart/Diskcleanup in CMD?

783 Views 20 Replies 3 Participants Last post by peterh40, Dec 9, 2020

Jnacke

Discussion Starter · Dec 9, 2020

Hello everyone I'm new here. So recently my windows 10 got corrupted because I changed something in the Regedit in my AMD GPU and I shutdown my PC while chkdsk is running at stage 5 (I was stuck for 3 hours in chkdsk, my fault I know) , then when I turn on my PC after the bios splash screen it turns black so that means my windows is dead. Now I am trying to install windows again in my hard drive using diskpart in cmd. My question is if I use diskpart to format my SSD (currently has my windows 10) will it reset REGEDIT and install windows?

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zebanovich

· #2 · Dec 9, 2020

Jnacke said:
My question is if I use diskpart to format my SSD (currently has my windows 10) will it reset REGEDIT and install windows?

Using DISKPART will format your drive which means everything will be lost (including registry changes), however this might not fix your problem with partial run of CHKDSK.

Here is how to proceed to resolve problem:

1. Boot from Windows installation media
2. Select language and keyboard layout and click "next"
3. Click on "Repair my computer" link
4. Click on "Troubleshoot"
5. Click on "Command prompt"
6. Run following commands

Code:

DISKPART
lis vol

7. This will show you partitions, your job is to identify each partition of problem disk
When you do so note the volume letter exit diskpart and run CHKDSK to fix it (in this case C:\)

Code:

exit
CHKDSK c: /rx

When the command is finished you can reboot and your old system should be able to boot.
If it doesn't boot you can follow steps 1-4 again but this time choose "Startup repair"

Otherwise if you want to continue by wiping out data on disk, you can recreate partition table, format disk clean and perform clean Windows installation.

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Jnacke

Discussion Starter · #3 · Dec 9, 2020

zebanovich said:
7. This will show you partitions, your job is to identify each partition of problem disk
When you do so note the volume letter exit diskpart and run CHKDSK to fix it (in this case C:\)

Btw I changed my bios to 1st boot my HDD because my SSD has the Windows. Volume 0 is my Storage while Volume 1 is my SSD.
What should I do next?

zebanovich

· #4 · Dec 9, 2020

you need to identify volume letter not volume number.
What volume letter is SSD assigned?

Jnacke

Discussion Starter · #5 · Dec 9, 2020

Computer Personal computer Font Display device Laptop

Oh I forgot to send the picture. The volume letter of my SSD is D.

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zebanovich

· #6 · Dec 9, 2020

Therefore your command according to this screenshot is:

Code:

exit
CHKDSK d: /rx

exit is needed to exit DISKPART context

Jnacke said:
Btw I changed my bios to 1st boot my HDD because my SSD has the Windows

To boot from SSD once it was repaired you'll have to revert changes in BIOS to boot from Windows installed on SSD.

Jnacke

Discussion Starter · #7 · Dec 9, 2020

[QUOTE="zebanovich said:
Code:

exit CHKDSK d: /rx

you mean? chkdsk d: /r /x

It says to me: chkdsk d: /rx
invalid parameter

zebanovich

· #8 · Dec 9, 2020

Jnacke said:
you mean? chkdsk d: /r /x

Does that work?

Jnacke

Discussion Starter · #9 · Dec 9, 2020

zebanovich said:
Does that work?

Haven't tried it yet. Was waiting for your response I thought you know haha.

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zebanovich

· #10 · Dec 9, 2020

Ah OK, thats fine, both commands should work.
the /rx version worked fine for me in virtual OS, but I'm too lazy to test again

Jnacke

Discussion Starter · #11 · Dec 9, 2020

Font Technology Computer Darkness Screenshot

Here is the result of Chkdsk /r /x

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zebanovich

· #12 · Dec 9, 2020

therefore your issue is not disk problem but system boot.

See my initial post on how to troubleshoot startup problems.

Jnacke

Discussion Starter · #13 · Dec 9, 2020

Lmao sorry for being too slow. I still haven't found your "Troubleshoot startup problem" post. Can you please provide a link? Thanks a lot

zebanovich

· #14 · Dec 9, 2020

No problem hehe.

Jnacke said:
I still haven't found your "Troubleshoot startup problem" post

Here is relevant quote:

zebanovich said:
you can follow steps 1-4 again but this time choose "Startup repair"

EDIT:
Btw. the link is here:
#2 (techguy.org)

Jnacke

Discussion Starter · #15 · Dec 9, 2020

Azure Font Aqua Operating system Electric blue

Yep I already have tried that before both booting HDD and SSD 1st. I don't know why it is blank on Log file

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zebanovich

· #16 · Dec 9, 2020

If you don't care to lose all data on SSD you can simply reformat drive and reinstall system.

Otherwise see options below for additional recovery options:
Recovery options in Windows 10 (microsoft.com)

If none of these recovery options work and you want to recover your data from SSD you'll have to use command prompt.

zebanovich

· #17 · Dec 9, 2020

Btw. I forgot to tell you, but I think you need to set SSD as primary boot in BIOS before doing startup repair.
it could be it failed because HDD was diagnosed instead of SSD!

Jnacke

Discussion Starter · #18 · Dec 9, 2020

zebanovich said:
Btw. I forgot to tell you, but I think you need to set SSD as primary boot in BIOS before doing startup repair.
it could be it failed because HDD was diagnosed instead of SSD!

Font Display device Electronic device Gadget Multimedia

Done, but still the same error before. So how should I format my SSD? Should I use CMD and Diskpart or the format option in the installation menu

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zebanovich

· #19 · Dec 9, 2020

Jnacke said:
Should I use CMD and Diskpart or the format option in the installation menu

If you're sure you don't need to back up data on SSD, both methods will do the trick.
The difference is that using diskpart you can clean drive more thoroughly AND perform slow format which will mark bad sectors.
Using format option in installation menu will only format, but if there is any problem with disk then it will remain to be a possible problem with new installation of windows.

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Jnacke

Discussion Starter · #20 · Dec 9, 2020

Thank you bro just fixed my PC now and currently installing drivers. I couldn't do this without your help thanks a lot & Advance Merry Christmas!

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