Я нашла новый драйвер для принтера, и программа больше не зависает.

Russian past tense agrees with the subject in gender and number.

• я нашла = I (female speaker) found
• я нашёл = I (male speaker) found
• оно нашло = it (neuter) found
• мы нашли = we found (plural, no gender)

нашла comes from найти (to find), which is perfective aspect. Perfective here means the action is seen as completed (you successfully found the driver).

Usually no, not with the same meaning. находила (from находить, imperfective) typically means:

• repeated finding (I used to find... / I would find...), or
• a process/background (I was finding...), which sounds odd here.

To say you located it successfully once, нашла / нашёл is the natural choice.

Russian often uses the present tense to describe a current result/state after a past action. The idea is:

• You found the driver (completed past event),
• and now the program no longer freezes (current ongoing situation).

You could also say past: и программа больше не зависала (and the program stopped freezing), which focuses more on what happened then, rather than the current situation.

больше не means no longer / not anymore. It normally comes before the verb (or before what it negates):

• программа больше не зависает = the program no longer freezes.

It’s very common as a fixed pairing: больше + не.

Yes. зависает is present tense of зависать (imperfective), meaning to freeze / to hang (about a computer/program).
Imperfective is used because freezing is viewed as a repeating/ongoing possibility (“it freezes” as a behavior).

A common perfective partner is зависнуть (to freeze/hang once).

The preposition для requires the genitive case.
So принтер (nominative) becomes принтера (genitive): для принтера = for the printer.

новый драйвер is the direct object of нашла, so it’s in the accusative case.
For inanimate masculine nouns, accusative = nominative, so it looks unchanged:

• драйвер (Nom/Acc)
• adjective agrees: новый (masc. Nom/Acc)

If it were animate, accusative would match genitive (e.g., нового студента).

It’s a very common loanword in IT Russian. It declines like a regular masculine noun:

• Nom: драйвер
• Gen: драйвера
• Dat: драйверу
• Acc: драйвер
• Instr: драйвером
• Prep: о драйвере

Because и connects two independent clauses (each could stand as its own sentence): 1) Я нашла новый драйвер для принтера
2) программа больше не зависает

In that case, Russian normally uses a comma before и.

Yes, often. Russian can drop the subject pronoun when it’s obvious from the verb:

• Нашла новый драйвер для принтера, и программа больше не зависает.

Keeping Я adds emphasis or clarity (e.g., contrasting with someone else).

• и is neutral: and (adds the second fact as a result/continuation).
• а often implies contrast: but/whereas.

Here the meaning is “I found it, and as a result it doesn’t freeze anymore,” so и fits best.