It's easy, just open the address tab ("View->Show Addresses" to enable the tab).
In the address tab, right click the address and click "Freeze".

Take note that by freezing the address, it's just frozen in that specific client and wallet file.
It can still be spent in other instance of that wallet, say, your Trezor Wallet/Suite app.

I'll just add this: There's a tutorial on how to use use Trezor in Electrum - https://wiki.trezor.io/Apps:Electrum

Since it's not from a custodial wallet or an exchange, there's not much info he can gather from it alone.
Just keep it "single-use" and once you received funds from it, do not use it again.
Learn to use "coin control" to manually select inputs so you wouldn't use the coins sent to it together with your other UTXO (received transactions)
because that could potentially link that address to your wallet's other addresses.

If you're using Electrum to manage your Trezor's BTC balance, you can freeze the address so any txn that's received through it wont be spent.

The second wallet might be unloaded when your tried to sync the blockchain.
So it needs to be synced once you loaded it.

But a new wallet is automatically loaded after creation, thus should be scanned together with the first wallet.
But since you said "open" (file->open wallet; Qt?), and if it's available from the selection (for Qt) or didn't returned with "already loaded" (for cli),
then it wasn't loaded for some reason.

You can use your current installation but it needs some configuration tweaks in both Bitcoin core and Armory.
You'll also need to move Bitcoin core's data directory to the new drive, then the settings; so you wont have to start from scratch.

Here are the configs (both should be closed before following these):

• In bitcoin core, create/find the "bitcoin.conf" file in the default data directory (after moving everything to the new drive).
  Open it using a text editor and put this line: datadir=E:\Example\Directory - the path should be the external drive's new bitcoin data directory.
• In Armory, just follow this pathing tutorial: https://btcarmory.com/docs/pathing

Note: since you're planning to use an external drive, please bear in mind that it must have a reliable connection to the PC while armory and bitcoin core are running because a simple break in communication with the external disk could lead to corrupted blockchain, block index and/or UTXO set. Fixing those issues will be time consuming.

Oh, without the space, you can't use Armory because it requires the full blockchain (c/o Bitcoin Core).
Your option now it to use an SPV wallet like Electrum or if you already sent bitcoins to it, you can export the private keys to another wallet.

If you're planning to expand the storage, it should be an internal drive for better performance, but an external drive will work as well.

Do you have other drives/partition that has 400GB+ of free disk space?
Because Bitcoin Core will need it for its data directory files, mostly the blockchain.

I believe most Bitcoin Mining Software are obsolete and most aren't maintained by their developers, that's why it's hard to get support.

I'll just leave a link to BFG miner's old thread: BFGMiner 5.5.0: CPU/GPU/FPGA/ASIC mining software, GBT+Stratum, RPC, Linux/Win64
And see if you can find a previously solved issue similar to yours; you can use "search" while the thread is open.

Good luck.

Problem is, people might have thought that you're going to use BFG miner for Altcoin mining because you've mentioned "GPU", since it's not feasible to mine Bitcoin using it.
It's possible but the chance is extremely low compared to solo mining using an old ASIC.

That's unless if you're doing it for research purposes.

I'm afraid I can't help you with that since I haven't used BFGMiner.

This is the Altcoin Mining board, you might get better results if you can move this to Bitcoin Mining: Bitcoin > Mining > Mining software (miners)
I don't know if there are still BFG miner users there but it's best to move this to the proper board.
Move button is below the page (lower-left side).

I'll ask a mod to move this if you're not allowed to.

That "wallet thing" is actually a storage of private keys that has the capability to spend coins from the blockchain which is stored in each of the full nodes.
The security is up to your capability, OS, etc. (and the wallet software of course).

"Other wallets" like Coinbase aren't in the list because those are not actually wallets but a custodial service where that company is the actual hodler of your coins.
This time, they are the ones that will protect your coins and all you have to keep safe is your account and password.

There's already a list in the OP that have entries for both Android, IOS and Desktop.
Based from what I've said above about custodial wallets, as long as both wallets contain the same private keys, they'll work simultaneously without issues even if it's not the same wallet.
You can achieve that by restoring the wallet's backup (usually a 12/24-word phrase) to the other, but some aren't compatible.

Note: Given that you want to use it in both platforms and will contain the same keys, if one was compromised, the other will be as well.

TL;DR
One simple answer: By looking at your other post, wallets do not contain free bitcoins even in the early days of Bitcoin,
most wallets are free to use and I don't think there are any "pay-to-use Bitcoin wallets".
Do an extensive research about "custodial wallets" and after you gained confidence, you can now use that wallet.
Here's the board for wallet software where you can ask questions: https://bitcointalk.org/index.php?board=37.0

You must have a "local transaction" in your current Electrum wallet, it's either a non-broadcast(ed) transaction or dropped from mempools.
Refer to HCP's post for the icon in the history tab, it has a "blue computer" logo.

The issue was, Electrum is also computing the local transactions into your wallet's total balance but since it's not technically "sent",
your wallet backup which doesn't have that local transaction saved, still shows the correct balance.
The actual solution is (only if your backup is missing the latest labels, etc.): Just right-click on the local transaction, then select "Remove"; and the balance should update.

Yes indeed, that's why I mentioned "as long as the address isn't re-used".
But in this particular use-case, there's no way that the 'unspent transaction output' can be spent before the lock time passed anyways.
So IMO it's safe to say, no.

You mean the "is the block number or time that you've set in the script, public?" right?

No as long as the address isn't re-used (there's no reason to reuse it after the lock time anyways).
The first time you funded the address where your bitcoins will be locked, it will look like just another 'send-to' P2SH or P2WSH transaction.
The txn may be available in the blockchain but they can't see its "redeem script" so they wont be able to see the block or time that you've set.

Unfortunately yes.
Armory v0.90-beta (November 2013) and above will create a backup v1.35c which only has two lines.

Reference: https://github.com/etotheipi/BitcoinArmory/issues/157#issuecomment-31595353
(etotheipi is the owner of the previous Armory repository)

You wont be able to restore it to the oldest version because it requires a "Chaincode" alongside the "Root Key" and "SecurePrint™ Code".
Specifically old versions lower than v0.90; You can only restore your backup to Armory versions that support 'backup version 1.35c'.

I think that's what HCP meant by the long "sooooo". Because what you said and what you have didn't matched.

Try remember the Chaincode which is another two lines similar to the root key, then you can try to restore it to the oldest version.

Similar to Jawhead's reply, that happens when the entire thread (the OP itself) is the one deleted by the mods.
The topic starter will get the "message" but the replies will just be deleted alongside with the topic.

Example of your case:
The thread where you replied - "A rumor about Shiba that is wrong" was deleted by a mod, so your reply was removed as well because it can't exist if the thread where it was posted is gone.
You didn't get a message because the OP was the one deleted by the mod.

The pointers should be in the logs like goatpig requested in the previous replies.

"armorycpplog.txt" is in Armory's datadir; default paths: btcarmory.com/docs/pathing#armorydb

I've checked my log, with "https://" it won't be able to contact the remote through the watchtower_url:
Without "https://", there's the same error; but, the watchtower recognized the client's channels either way.

I think "remote watchtower url" isn't necessary for localhost since the client and watchtower are both running in the same machine.
As long as "use_watchtower": true, is also in the config, it should work. (I'll edit the client setting in previous reply)

But to be sure: you can open an issue in Electrum's repository here: https://github.com/spesmilo/electrum/issues
And paste the errors when localhost is used as "watchtower_url" in the client.

It works at my end and I'm using Armory version 0.96.5.
Done the same steps: Created a new wallet->Proceeded to Step4->Clicked 'Create Paper Backup'

The only way I can reproduce this is to select another option like "Digital Backup", then re-select "Printable Paper Backup".
After that, neither options for 'printable paper backup' is ticked.
When that happens, "Create Paper Backup" wont work until I ticked one of the options.

Refer to these images:

	One option is selected:	Option not selected:

You could've just rescanned.
The latest scan might have left some invalid transactions in your wallet.

rescanblockchain (info) with default arguments will scan from height 0~tip.
That will take quite some time so be patient while it scans. After that, the correct balance should appear and the invalid transaction(s) will be identified.
It will take hours but not days and wont cost your internet bandwidth unlike redownloading the blockchain.
But it's too late since you've already deleted your data.