Need to free up 5GB on Win 8.1 tablet for Win 10 upgrade

sasllc
sasllc used Ask the Experts™
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The C: drive on my Dell tablet only shows 4.5GB free of 23.2GB.  The Win 10 upgrade says it needs 8GB free on the C: drive.  I don't see any large deletable folders, and I don't see a hiberfile or swap file.  But I do see that the Windows folder is taking up almost 14GB.  Since Win 8.1 is about to replaced, is it possible for me to move about 5GB worth of Windows folders over to the SD card?  If so, which ones would be safe to move?  My folder list is attached as a screenshot.  TIA
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Business Consultant (Owner)
Most Valuable Expert 2012
Expert of the Year 2018
Commented:
You need to hold tight on Windows 8.1.   Your drive is too small. Even if you succeeded now, a regular update to Windows 10 can use up to 20 GB.

Can you put a bigger SSD drive in the tablet?
Top Expert 2013

Commented:
what tablet model is it?
Distinguished Expert 2018
Commented:
Tell you what: win10 x64 installed clean on a small drive takes only 13 GBs. It would work if you install it clean, but upgrading will always be a problem on that drive (remember: windows 10 will be updated twice a year with OS updates as big as that: you will run into this problem again and again). Please open diskmgmt.msc, make a screenshot of your partitioning and upload it. If there were a recovery partition, we might be able to delete it and win the space in question. Reason I ask: 23,2 GB is no regular drive size - maybe it's a 32 GB drive.

Cleaning up the windows folder is not recommendable. Please download treesize, rightclick the exe and select "run as administrator" and have it show you where the big chunks outside of c:\windows are. Maybe you don't see hiberfile.sys, because your file explorer is set to not show hidden and/or system files?

These are quite a few suggestions - please try all of them and give feedback.
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JohnBusiness Consultant (Owner)
Most Valuable Expert 2012
Expert of the Year 2018

Commented:
Even 32 GB will be too small within a few months.  So if you really need to upgrade this machine, you need a bigger drive.

Consider a newer tablet with at lest 64GB and preferably 1128GB.
Distinguished Expert 2018

Commented:
John, did you know that windows caches less files on smaller drives? It's like that, so on 32 GBs, less space is consumed and if we only use the installation for internet and word processing, it can be enough. On 24 GBs, well, enough for the 32 bit version.
JohnBusiness Consultant (Owner)
Most Valuable Expert 2012
Expert of the Year 2018

Commented:
It might work. Even my phone has 64GB of storage.
Top Expert 2013
Commented:
prolly there 's a recovery partiton of 9 GB
JohnBusiness Consultant (Owner)
Most Valuable Expert 2012
Expert of the Year 2018

Commented:
Thank you and good luck with perhaps a new tablet at some point.
Distinguished Expert 2018

Commented:
Saslic, could you solve it? Let us know your solution, it helps others to read about it :-)

Author

Commented:
In this case I ended up going off in a different direction.  This was somewhat of a "disposable" tablet, so I deleted the 5GB system recovery partition just "to the right" of the C: partition.  But then I spent several hours and several dollars on disk management tools to get the C: partition to extend into that available area.  None of the tools would do it--not giving me the option to extend that partition.  

But it turns out it was because Dell shipped the tablet with the C: drive encrypted, so once I cleared the encryption, I was able to extend the C: partition.  I ended up with 8.5GB, and the Win10 installation went fine, and I still have about 4GB remaining.

Thanks to all.
Top Expert 2013

Commented:
tx for feedback - Always useful
Distinguished Expert 2018

Commented:
What encryption was it? BitLocker encrypted drives are extendable with Windows' own disk manager.

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