Combining boot partition with Windows 10 installation already underway
Combining boot partition with Windows 10 installation already underway
You're facing a tricky situation with your Windows 10 installation. It sounds like you created a partition for Windows 10 but ended up with a very small space that's causing performance issues and limiting what you can do on other drives. There might be a way to combine or merge that boot partition back into the main drive without fully formatting it, but you'll need to be careful since Windows 10 is already installed there. Have you considered using tools like DiskPart or GParted to attempt a recovery or reorganization?
Confirming your request – you're looking for a single C: partition beginning at the start of E: (~3.06GB) and extending to the end of the disk. You wish to keep certain data on both drives E and C:. Re-installing Windows isn't ideal. There are risks involved with resizing partitions while booting from that drive, especially since few operating systems can handle such changes during installation.
I suggest evaluating these options:
- Create a full backup of all critical data you don’t want to lose.
- Consider transferring the desired data from C: to E: and then restarting from installation media, removing C: and reinstalling Windows on E:.
- Alternatively, boot from another OS capable of resizing partitions, move C: to its former location, resize it, and then reinstall Windows.
You’ve already backed up in step one, so you can restore those files now. I assume Windows supports non-destructive reinstallation, which would preserve your user data. That’s why the first backup is crucial.
Regarding merging drives, it seems unlikely to be feasible with standard file systems. Using LVM might help, but it’s unclear if it’s available for Windows in this scenario.
In this scenario, the bootable drive where Windows is installed cannot be expanded backward after E: because you can only move forward. Instead, it will require relocating the entire partition or filesystem on the disk—this process will be lengthy and possibly risky.
False. With MiniTool it's possible to go back as well. The process is simple and safe.
It doesn't matter what a single application claims to do, but his is a fact: it is very easy and almost instantaneous to expand forward most file systems (well, things like FAT might be more difficult, as their block size is heavily dependent on the file system size, but most modern file systems are easier). You could do some kind of trickery to expand backwards, by actually touching the filesystem (as in, point the nodes and whatnots to where the files actually are, and move indexes to where they are supposed to be etc.), but that is certainly not safe and way more complicated than just moving the partition. Most likely every single tool that claims to expand forwards, probably moves the partition / data backwards instead and then after that operation, expands forwards. Any other kind of operation is way more error-prone. In any case, the end result is what we want, but is way slower and more complicated than expanding forwards (towards the end of disk). And no, I wouldn't call it safe. For example: a electric blackout during this (a longish operation) will most likely render the file system in an unusable state. Or, if actually touching the file system contents, a small (hitherto undetected) error / inconsistency on the filesystem might trip the code, and the filesystem will probably be a mess afterwards. The safest option (only viable if the disk is empty enough), is to copy a partition in it's entirety before touching the original one (that way, there is always an intact copy at any point in time). If the OPs partitions are almost full (and he really needs the data, and can not back it up elsewhere) ... well, it's quite a painfull job to do. I would not recommend multiple moves and resizes - although doable, it will take (comparatively) way more time and / or involve more risks for the data.
I aim to stay respectful and acknowledge that my guidance may not reflect deep personal insight, but rather what I found online. Many users have successfully applied my tips with MiniTool. When discussing issues like errors or filesystem problems, it’s important to recognize that professional partition tools such as MiniTool Partition Wizard are developed by experts familiar with file systems. Their capabilities go beyond basic built-in functions, offering precise operations tailored for complex tasks. If you wish, you can reach out and share your reasoning—most likely they’ll reassess their approach. Filesystem management isn’t overly complicated, and defragmentation tools have proven effective without causing data loss. If you’re concerned about potential errors during file transfers, it’s wise to verify the program first before proceeding. Personal experience matters, but tested solutions on forums can provide reliable guidance. Good day. P.S. The way you move or resize drives doesn’t need to be risky; just ensure you understand what you’re doing.
Hello homeap5, this situation is becoming quite intense. I believe it’s no longer helping you in a meaningful way and we might just keep arguing back and forth. I didn’t intend this to be a personal comment. Please know that my aim was to share accurate details about partition tasks and the possible dangers involved. I still think it’s important to resolve any confusion here; hope we can both leave without feeling upset.
In reality, what we see online needs careful consideration. I trust StackExchange (my own experience plus its large user base) as a reliable source. If there are inaccuracies, corrections should come quickly—you can usually tell by how much attention an answer receives. This isn’t just random search results; it’s about verifying claims.
I linked some of your points because I thought certain statements might be misleading. Another factor is that this thread could stem from unrelated users on another forum. Also, there’s always a chance participants have private information they’re not sharing. That makes it worthwhile to try and reach a mutual understanding.
In my view, you’re inserting words without fully explaining them. I never claimed those tools are completely safe—copying or expanding partitions can be risky. My point was that automating such tasks usually involves two file system operations, which is safer than copying everything at once. Safety depends on the context; theoretically, modifying files directly instead of copying avoids some issues, though it still carries theoretical risks.
MiniTool could be a useful tool in this regard, but I’m not certain about its exact capabilities. I’ve seen similar software before—some are effective, others aren’t. For large data sets, especially on the same drive, operations can take hours and may cause inconsistencies if not handled carefully.
Personally, I avoid unsafe actions unless I’m certain of being able to recover the data. I’ve never encountered errors during these tasks, though I’ve only done them a few times. For big files or critical information, I’d prefer to back up first, even if it’s a bit time-consuming.
The warnings in screenshots about backing up before moving partitions are sound. It’s a clear reminder that caution is warranted. I can’t find detailed info on MiniTool’s methods, but I suspect it offers some automation features. Still, I’d prefer to avoid risky operations unless I’m confident in data recovery options.
The main takeaway here is that terms like “important” and “safe” are vague. Different situations require different approaches—what’s safe for one might not be for another. It’s better to weigh the risks carefully before proceeding.