Windows 10 computer takes hours and sometimes days to boot

Hereforhelp9 · 30 Oct 2016

Hi. I have a Windows 10 computer. Just a few months ago, I encountered a problem, and it's really annoying me now. When my computer shuts down, it will take hours if not DAYS to boot. One time it took almost 2 days. The screen just stays blank, and I can't hear the fans or anything running inside the computer. Everything is plugged in correctly, I don't know what I'm doing wrong. It's off right now, I've been waiting since this morning for it to come back on. How can I boot it right now??? And when I boot it, how can I fix this problem?

dalchina · 31 Oct 2016

Hi, some things you can try:
1. Run a check on your disk:
From an admin command prompt
[Windows key + X, click command prompt (admin)]
chkdsk C: /F
Your PC will need to restart.
Make sure the result is clear or fixed- else do not proceed.
Post back the result, which you can get after a restart as follows:
How do I see the results of a CHKDSK that ran on boot? - Ask Leo!

- or do this from outside Windows e.g. booting your PC with Kyhi's boot disk (DVD/flash drive) available from the top of the Software and Apps section here.

2. Check the SMART parameters of your disk using Crystal Diskinfo (free, portable).
- you can do that having booted using Kyhi's disk too

3. Try turning off fast start-up.

4. Research: I searched for
very slow boot
in the forum - e.g.

Solved Very slow startup after Windows Anniversary update - Windows 10 Forums
Very Slow Boot - Windows 10 Forums
Solved Very painful and slow boot time and 100% disk usage - Windows 10 Forums

5. Try booting to Safe Mode. Is that a lot faster?

6. Try a clean boot. Is that any faster?

Hereforhelp9 · 31 Oct 2016

dalchina said:

Hi, some things you can try:
1. Run a check on your disk:
From an admin command prompt
[Windows key + X, click command prompt (admin)]
chkdsk C: /F
Your PC will need to restart.
Make sure the result is clear or fixed- else do not proceed.
Post back the result, which you can get after a restart as follows:
How do I see the results of a CHKDSK that ran on boot? - Ask Leo!

- or do this from outside Windows e.g. booting your PC with Kyhi's boot disk (DVD/flash drive) available from the top of the Software and Apps section here.

2. Check the SMART parameters of your disk using Crystal Diskinfo (free, portable).
- you can do that having booted using Kyhi's disk too

3. Try turning off fast start-up.

4. Research: I searched for
very slow boot
in the forum - e.g.

Solved Very slow startup after Windows Anniversary update - Windows 10 Forums
Very Slow Boot - Windows 10 Forums
Solved Very painful and slow boot time and 100% disk usage - Windows 10 Forums

5. Try booting to Safe Mode. Is that a lot faster?

6. Try a clean boot. Is that any faster?

Thank you for the suggestions on what to do, I will try these once it turns on, but that could be days from now, as it is extremely slow. I will keep waiting for it to turn on, then try your suggestions.

dalchina · 31 Oct 2016

Hi, a lot of these you can do by booting from external media -provided your PC boots normally that way. If it is slow booting from external media, that tends to indicate you have a hardware problem.

So please get yourself Kyhi's disk as above and try booting from it.

AddRAM · 31 Oct 2016

First thing you need to do is fill in your specs, completely in every detail, we have no idea what you have.

1 option would be to backup your data and reset your computer.

Reset Windows 10 - Windows 10 Forums

Or do a System Restore to back before the problem started.

System Restore Windows 10 - Windows 10 Forums

dalchina · 31 Oct 2016

@AddRAM - there's no point doing that until we know the disk is ok. First thing, check the disk.

AddRAM · 31 Oct 2016

Goes without saying, it`s been a few months, that should have been confirmed already.

Hereforhelp9 · 31 Oct 2016

This is a shared computer and another person who uses it thinks it's a bad idea to download something from an unknown source. We are very careful about what we download, so I think we decided just to wait until it comes back on itself. Thanks anyways though. I'll let you know when it's back.

AddRAM · 31 Oct 2016

Not careful enough I guess :)

No one on this site would recommend you try anything we haven`t used our self.

Good Luck, keep us informed.

dalchina · 01 Nov 2016

Hereforhelp9 said:

This is a shared computer and another person who uses it thinks it's a bad idea to download something from an unknown source. We are very careful about what we download, so I think we decided just to wait until it comes back on itself. Thanks anyways though. I'll let you know when it's back.

The source- the boot disk- is from a senior member of this site. I think you can trust that- If not, I'm not sure what you can trust.

Anyway, I'll leave it with you. Good luck.