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Local Disc (C:) Shows Red.

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Khandro | 09:04 Sun 11th Feb 2024 | Computers
19 Answers

When I look into 'This PC', the 'Local Disc (C:)' symbol shows as a red line, under which it shows; '4.22 GB of 66.5 GB' - in other words, I guess it's nearly full.

What can I, or should I if anything, do about this please?



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If you use windows go into your operating file list and then delete all the Microsoft updates bar the last three. They can clog up your storage big time as Microsoft does not remove the old out of date ones. For example, the last time that I replaced my pc  on insurance after the cat had knocked about 1/5th of a glass of red wine over my keyboard, the same Asus model but updated, my memory on the old one had been at 48GB of 86 total - On the new one, I was astounded when it read 26GB of 286GB. My friendly pc support guy in Truro Computers told me about this 'hanging on' by Microsoft and that he had removed all the backdated ones.....

The basic options are to delete anything you don't need ( maybe backing it up first) or replacing your drive with a lager one.

If you have a lot of large files on your hard drive that you want to keep you could transfer them to an external drive - I use a NAS drive which means I can access them from every device I'm using and set it to automatically back up files from every device.

If you have only one drive in your PC and it is partitioned to show additional drives that have space, move large files to the other partitions or repartition your drive to make C: bigger.  I would prefer to move the files and keep C: for Windows and programs. 

Another alternative is to move your large files to cloud storage. 

Run Disk claenup too - removes unnecessary files and empty recycle bin.


I'm still using Windows 7. Tis true. Not had any problems. Mind you, I don't do important stuff on it, like banking, internet shopping etc. I have a laptop for that.

Question Author

I tried the DisK Cleanup, which worked but only removed less than 2 GBs.

I have 2 other disks it appears, both nearly empty;  'local disk F' has 52 GBs free and a 'local disk G' which has a massive 349 GBs free.

Can I transfer to them from Disk C ?

Question Author

I'm Windows 10 btw.

Yes you can transfer them but keep Windows and frequently used programs on C:

Transfer vidoes and other large files to G, you could move your music library to G too.  


It depends on the files you refer to. If an installation is set to expect a particular vital file on C: then it won't find it when moved. But your personal files can be moved. And you can choose to delete programmes from the C: drive and reinstall them on a drive that has more room.

"4.22 GB of 66.5 GB" is nowhere near being full. Have you mistyped? Or does it mean only 4.2GB left out of a capacity of 66.5GB?

I took the 4.22 GB to be free space, not used space.  Can you clarify, Khandro?  Windows alone takes up much than 4.22GB

Question Author

It now (since the disk cleanup) shows; 'Local Disc (C:)' 5,13 GB free of 66,5 GB in other words, just over 5 GB free.

While the other two are more or less empty with 52 GB free on Disk F and 349 GB free on Disk G

I'm an ignoramous on such matters, but does it matter, as far as the computer's functioning is concerned, which disk stuff is stored on. And might it be that once the Disk C is full, it would automatically then use the space on one of the other disks ?

Though the fact that the line on the Disk C symbol is red would seem to be some form of warning message.

Otherwise the PC is running OK.

The PC won't automatically change disks.

Operating system stuff needs to be on the C: drive. Although if you know what you are doing some things can be set to be elsewhere, but best not complicate things.

Installed programs can usually go anywhere but needs to be set at the time of installation. Where your data is saved can usually be set per programme too.

You don't have 'two other discs'.  You have one disk that has been partitioned in to three.

As I said earlier, put all your document files, photos, videos, ebooks on to G:

Leave Windows on C:

If you have programs that are taking up a lot of space, uninstall them and reinstall on G:

Question Author

I think I've found a way to drag & drop a file from Disk C to Disk G (as a copy) I could then having copied it, delete it from C.

Would that work?



Quicker and easier to use method described in the link I posted above

Open File Explorer.

Click on This PC from the left pane.

Under the "Devices and drives" section, double-click the drive with the data you have to move.

Select the files that you want to move.Quick tip: If you have a large amount of data, it's best only to transfer some of the data at a time.

Click the Move to button from the "Home" tab.

Click the Choose location option.

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